Answer:
It can make the resistant insect live and to produce more insects through reproduction. This will happen if a pesticide is used on an insect population but only kills 98% of insects
Explanation:
Pesticides are chemicals used to kill the population of insects attacking the crops plants and household things. 98% of insects are killed by pesticides because they do not have the gene of resistance which disables them to survive. Some of the insects have resistant genes which helps them in surviving and reproducing more insects.
The number of these insects’ increases through reproduction. Some will be pesticides of "contact" that kill when the organism falls into direct interaction. Some are "systemic" and it will be embedded into the molecular structure of a plant. Once they bite the crop, they destroy them and consume the chemical pesticide.
Does the biomedical science community have the right or responsibility to cure all human impairments?
Answer:
yes they have the right responsibility
The biomedical science community has the responsibility to aim to cure human impairments through techniques like genetic engineering and gene editing. However, these technologies pose several ethical and social concerns like potential misuse for non-therapeutic modifications, possible inequality increase, threat to biodiversity, and conflict with ethnomedical approaches. Any step forward in this field requires careful ethical consideration.
Explanation:The biomedical science community indeed has the responsibility to alleviate and aim to cure human impairments, however, this presents numerous ethical considerations. Techniques such as genetic engineering and gene editing technologies like CRISPR have the potential to prevent illness, eliminate disability, and augment human capacities, but they also pose significant social and ethical issues. For instance, these technologies could increase social inequality, result in new forms of discrimination, and may negatively impact biodiversity.
Another concern is the potential for misuse of these technologies for non-therapeutic modifications, leading to controversial practices such as selected human genetic engineering. Issues related to bioethical aspects, personal health and privacy, potentials of misuse of genetic information and conflict with certain cultural beliefs and values also need to be addressed. It's also important to consider the potential disruption and threat posed to culturally established treatments and cures, particularly in communities that rely on ethnomedical approaches for healing.
In conclusion, while biomedicine holds great promise for improving human health, it's essential that their application respects ethical standards and promotes the greatest good for the greatest number. Any step forward in this area demands careful consideration and weigh of all potential benefits and harms to ensure responsible usage.
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Reginald punnet sought to apply the insights obtained by mendel to explain the laws of inheritance in structured fashion. What a punnet square and how is it used?
Answer:
A Punnett square is a diagram used to map out the possible genotypes of a child given the genotypes of its parents. In a Punnett square, the genotype of one parent is listed in the first row of the square, and the genotype of the second parent is listed in the first column. Then, in the middle squares, all possible genotypes of their offspring are listed, and the phenotypes are calculated using the law of dominance.
Explanation:
Which options describe the purpose of genetic screening?
(Select all that apply.)
to learn if an individual has a chance of developing genetic conditions later in life
to learn if an individual has a genetic condition
to learn if an individual has a chance of passing on a genetic condition
to learn if an individual has infections inside his or her body
Answer:
to learn if an individual has a chance of developing genetic conditions later in life
to learn if an individual has a genetic condition
to learn if an individual has a chance of passing on a genetic condition
Explanation:
Genetic screening looks a selection of genes from an individual to identify variation or mutations that are associated with disease. This can be used to:
learn if an individual has a chance of developing a genetic condition later in life. Examples of such diseases include Huntington's disease, or genetically-linked cancers such as BRCA-linked ovarian and breast cancers. Clinicians could identify patterns in a family and suggest that an individual might want to get tested for a disease-causing mutation, even if they don't yet have any symptomsto learn if an individual has a genetic condition - genetic screening might be suggested if an individual has a collection of symptoms that are not explained, or might be associated with a particular disease. Genetic diseases often appear in childhood, so those undergoing this type of testing could be quite young.to learn if an individual has a chance of passing on a genetic condition if an individual with a genetic disease or a genetic disease prevalent in their family wants to have children, they might wish to undergo testing to see if they could pass on the condition. Genetic screening might even be used to select for embryos that don't carry the disease-causing mutation after fertilisation.genetic screening cannot tell if an individual has infections inside his or her body. Infections are a type of disease that are not caused by our DNA, and the testing will not be able to provide any information about infections or any other non-genetic health problemsThe process by which two or more of these molecules are bonded together in a muscle cell is known as?
Answer:
enzymatic hydrolysis
Explanation:
Enzymatic hydrolysis is a process in which enzymes facilitate the cleavage of bonds in molecules with the addition of the elements of water. It plays an important role in the digestion of food. It may be used to help provide renewable energy, as with cellulosic ethanol.
Gastric lipase has an optimal temperature of 37°C. Sketch an optimal temperature graph below.
Answer:
See attached picture
Explanation:
An optimal temperature graph plots the rate of the enzyme reaction against the temperature. We know that the optimal temperature of this enzyme is 37C, so we know that at this temperature, the rate will be highest.
Additionally, there will be a minimum temperature required for the enzyme to work at all, which is why the line graph slowly increases the rate until its optimum at 37C.
Finally, at higher temperatures, the enzyme will become denatured and its activity will be diminished. This is why the activity drops at high temperatures and is non-existent at very high temperatures.
The function of a biological macromolecule depends on what other elements it contains. Which of these biological macromolecule is rich in carbon-hydrogen bonds and functions as a long-term energy storage?
Answer:
Lipids are the biological molecules which are used as long-term energy storage. Lipids can be described as biological molecules that are not soluble in water but are soluble in non-polar solvents.
Triglycerides are a type of lipids which are present in the adipose tissue. These molecules serve as major long- term energy storage molecules both in plants as well as in animals.
Carbohydrates serve as quickest energy molecules whereas lipids serve as molecules which can store energy for longer periods.
Fats and oils which belong to the lipid group are rich in carbon-hydrogen bonds, serving as long-term energy storage in organisms.
Explanation:The biological macromolecule that is rich in carbon-hydrogen bonds and serves as a long-term energy storage is lipids. Lipids, specifically fats and oils, have many carbon-hydrogen bonds, which makes them excellent at storing energy over long periods. This can be useful in organisms during the winter months or during periods of fasting when other sources of energy are limited.
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Russian biologist Konstantin Mereschkowski published a work containing the endosymbiotic theory in the early 20th century. The endosymbiotic theory holds that eukaryotic cells came to exist because groups of smaller structures, such as organelles, joined together to benefit one another. The communities of structures adapted and became a single organism. Many modern biologists believe that the endosymbiotic theory explains the origin of eukaryotic cells. How does this explanation of the endosymbiotic theory indicate that a eukaryotic cell is complex?
A. The explanation indicates that eukaryotic cells developed by accident.
B.The explanation indicates that eukaryotic cells developed gradually over time.
C.The explanation indicates that eukaryotic cells were developed intentionally.
D.The explanation indicates that eukaryotic cells were developed by multiple entities.
The explanation indicates that eukaryotic cells were developed by multiple entities.
What is Endosymbiotic theory?It's possible that eukaryotic cells originated when different cell types fused to form one. They started coexisting in what are known as symbiotic partnerships.
Endosymbiotic theory is the explanation for how this could have occurred. One organism that resides inside of another is known as an endosymbiont.
Both the chloroplast and the mitochondrion are organelles that were previously free-living cells. They were prokaryotes that became ensconced within other cells (host cells). They could have become a part of the other cell by being eaten (a process known as phagocytosis), or they could have been parasites living inside the host cell.
Therefore, The explanation indicates that eukaryotic cells were developed by multiple entities.
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Based on the model explain whether the molecules shown crossing the membrane require energy to do so
Answer:
As the diagram is not given, hence let's generally describe the movement of molecules along the cell membrane.
Molecules can either pass through the cell without using energy through the process of passive transport. An example includes molecules of oxygen.
Molecules which are large and un-polar cannot move through the cell membrane easily. These molecules will require energy to move through the cell membrane. These molecules might move in with the help of the carrier or facilitated proteins. Examples include molecules of glucose.
Answer:
Read below
Explanation:
As a rule, molecules can either pass within the cell without applying energy throughout the process of passive transport (Molecules of oxygen for example). The molecules that are big and un-polar are unable to pass through the cell membrane easily. These molecules will need the energy to have the ability to go through the cell membrane. These molecules possibly might go through with the assistance of the carrier or facilitated proteins (Molecules of glucose for example).
Choose a specific site for further study where eutrophication is a problem (such as Chesapeake Bay, the Baltic Sea, or the Gulf of Mexico). List some sources of nitrogen and/or phosphorous to the water body and describe some of the ecological problems due to eutrophication at this specific site.
Explanation:
Due to the commercial farming activities in the MidWest, fertilizers and pesticides are usually washed away by precipitation and drain into the Gulf of Mexico. These elements (mainly nitrogen and phosphorus) offer much nutrients for algae causing them to thrive into algae blooms. Bacteria then find ‘fodder’ in dead algae breaking them down for energy sources. The bacteria, mostly aerobic, take up most of the oxygen from the water as they thrive. This makes the waters of the Gulf hypoxic hence the other marine organisms such as fishes cannot thrive. Actually, the ecosystem dies and the region is recognized as a' dead zone'.
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Answer:
Sources of nitrogen and phosphorous in Chesapeake Bay include runoff from agriculture, air pollution from vehicles and power plants, and wastewater from sewage and industry. Ecological problems resulting from the eutrophication include blocking of sunlight to aquatic grasses, stressing fish and shellfish by depleting oxygen, and rising pH, which further stresses fish and makes them susceptible to parasites.
Explanation:
FROM PLATOWhich of the following material has the highest electrical conductivity?
Wood
Clay brick
Iron
Aluminum
Copper
Nickel
Answer:
I would think Aluminum but i'm not 100% positive.
Explanation:
Among the materials listed, option E. copper has the highest electrical conductivity, making it ideal for electrical wiring. Metals generally conduct electricity well due to free electrons.
Metals typically have the highest electrical conductivity values because they have free electrons, which make it easier for electricity to flow through them. Therefore copper is normally utilized in electrical wiring and different applications requiring effective electrical conduction.
Here is a correlation of the materials recorded:
Wood: Unfortunate conveyor, utilized as an insulator.Clay block: Unfortunate transmitter, principally utilized in construction.Iron: Great channel, yet not generally so high as copper or aluminum.Aluminum: Awesome conduit, frequently utilized in power lines.Copper: Phenomenal conduit, usually utilized in electrical wires.Nickel: Great conveyor, yet not quite so high as copper or aluminum.Complete question :
Which of the following material has the highest electrical conductivity?
A. Wood
B. Clay brick
C. Iron
D. Aluminum
E. Copper
F. Nickel
How do the random distribution of chromosomes and crossovers create more variation in the resulting gametes?
When cells divide during meiosis, homologous chromosomes are randomly distributed during anaphase I, separating and segregating independently of each other. This is called independent assortment. It results in gametes that have unique combinations of chromosomes.
Crossing over creates new combinations of genes in the gametes that are not found in either parent, contributing to genetic diversity.
Sexual reproduction results in genetic variation through crossing-over, independent assortment, and random fertilization, leading to a vast number of unique genetic combinations.
Explanation:The process of sexual reproduction is able to produce a significant amount of genetic variation in offspring. This variation emanates from three pivotal events: crossing-over, independent assortment, and random fertilization. Crossing-over is a critical event during meiosis where there is a reciprocal exchange of DNA between maternal and paternal chromosomes. This leads to chromosomes with a mix of genetic material from both parents, which are then passed into gametes.
Moreover, the independent assortment of chromosomes during metaphase I further contributes to genetic diversity. This occurs when homologous chromosomes align randomly at the metaphase plate, and each daughter cell receives a random mix of maternal and paternal chromosomes. Given that humans have 23 pairs of chromosomes, over eight million combinations can result just from this random assortment. This figure doesn't even include the additional diversity brought about by crossing-over.
Lastly, random fertilization amplifies the potential for variation, as the combination of one randomly selected gamete with another during fertilization results in a zygote with a unique genetic makeup. These mechanisms ensure that the likelihood of producing two genetically identical gametes is extremely unlikely, which plays an important role in the survival and evolution of species.
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Which best describes the advantage of pest resistance?
Answer:
c) Farmers do not have to use harsh chemicals to save their crops.
Explanation:
Options:
a) Pests are mutated and tolerate more.
b) Pesticides become less effective.
c) Farmers do not have to use harsh chemicals to save their crops.
d) Farmers can kills weeds without killing their cash crop.
Pest resistance refers to a situation in which pests, e.g. weeds, insects, etc., become resistant by pesticides. This means that these chemicals are no longer effective on these organisms.
Although this could be seen as a negative effect, it could actually have advantages. Experts in biological control strategies aim to minimize the use of toxic pesticides and change to sustainable systems of pest management. Therefore, if a pest becomes resistant, farmers do not have to use harsh or toxic chemicals to save their crops and may opt, instead, for biological control methods, such as the use of nematodes to control pests.
The map above shows the dissolved oxygen levels at various locations in the Gulf of Mexico. Aquatic wildlife usually is more heavily concentrated around coastlines and in estuaries where fresh and salt water meet. However, the map shows an anomaly to this phenomenon. What likely explains the dead zones around the coastline of the Gulf of Mexico?
Answer:
runoff containing nitrogen enters the Gulf from rivers, causing algal blooms and subsequent eutrophication.
Explanation:
Eutrophication is the reduction of dissolved oxygen due to an increase of algae, which subsequently die and decompose, consuming high levels of dissolved oxygen.
6. The terms ac, al, ary, and ic are all
A. noun suffixes indicating procedures.
B. pseudosuffixes formed from roots.
C. adjective suffixes meaning "pertaining to."
D. prefixes that function as prepositions.
Answer: Option C.
They are adjective suffix meaning pertaining too.
Explanation:
Suffix is a word that is attached to the root or stem of a word to change its general meaning.
An adjective suffix refers to letters added to the root of a noun to qualify it.
Ac, Al, ary and ic are all adjective suffice that meaning pertaining too or having the character of the named stem word.
The terms ac, al, ary, and ic are all adjective suffixes meaning 'pertaining to'.
Explanation:The terms ac, al, ary, and ic are all adjective suffixes meaning 'pertaining to'. These suffixes are added to root words to change the meaning of the root word and make it an adjective. For example, 'academic' means 'pertaining to academics' and 'musical' means 'pertaining to music'.
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What is the difference between the grassland and savanna biomes?
Grassland biomes are closer to the equator and receive more rain
Savanna biomes are closer to the equator and receive more rain.
Grassland biomes contain mostly grasses
Savanna biomes contain mostly grasses
Answer:
Savanna biomes are closer to the equator and receive more rain.
Explanation:
Biomes are large geographic regions defined by a specific type of climate pattern and certain dominant plant and animal communities. Both grassland biomes and savanna biomes contain mostly grasses. Grassland biomes are found in semi-arid climate regions, where the rainfall is not sufficient to support significant tree growth. Savannas are grassy ecosystems with a significant component of woody-plants like shrubs or trees. They are found closer to the equator because of their warm climate requirements. They have two distinct seasons; a rainy season in the summer with a good amount of rain and a dry season in the winter.
Answer:
B-Savannas are closer to the equator than grasslands.
Explanation:
I took the lesson thingy on edge
A mule is the infertile offspring of a horse and a donkey Mules have historically been used as mounts and beasts of burden,
especially in rough terrain such as mountains or the Grand Canyon. Mules are generally stronger than either horses or donkeys,
can tolerate more extreme temperatures, have greater endurance, are longer-lived, and may require less food and water
There are places in America and other parts of the world where herds of wild horses live, well-adapted to the environment. If mules
are so much better adapted to harsh environments than either horses or donkeys, why have there never been populations of wild
mules?
A. because mules cannot reproduce
B. because mules are not natural
C. because mules are domesticated animals
D.
all of these
Answer:
a
Explanation:
because mules can not reproduce
Answer:
A Mules cannot reproduce
Explanation:
I just took a test and got it right
How is Newtons second law applied to football?
Answer:
More force from a football player's throw can accelerate a football faster.
Explanation:
Force = mass * acceleration
Final answer:
Newton's second law, stating that the change of motion is proportional to the force applied, is central to football actions like kicking, throwing, and pushing between players. The law explains how the force applied influences the ball's or player's acceleration, demonstrating the physical principles at play during a football game.
Explanation:
Newton's second law states that the change of motion of a body is proportional to and in the direction of the force acting on it. This principle is vividly demonstrated in football through various actions such as kicking, throwing, and pushing between players.
When a football is kicked or thrown, the force applied to the ball by the foot or hand causes it to accelerate in the direction of the force. The amount of force and the mass of the football determine its acceleration, according to the formula F=ma (force equals mass times acceleration). This is why quarterbacks and kickers need to apply significant force to throw or kick the ball long distances.
In the scenario of a lineman pushing against an opponent, each player exerts a force on the other. According to Newton's third law, these forces are equal and opposite. However, the player who can apply a greater force to the ground through their feet (thanks to friction and lower body strength) will be able to exert a higher force against the opponent, potentially overcoming them. This demonstrates that despite the equal and opposite forces, the outcome depends on the relative strengths and techniques of the players.
When the Air Temperature is closer to the Wet Bulb Temperature then the Relative
Humidity tends to be
Answer:
the humidity causes moisture
Explanation:
Final answer:
Relative Humidity tends to be higher when the air temperature is closer to the Wet Bulb Temperature, because this indicates the air is nearly saturated with water vapor, approaching 100% relative humidity.
Explanation:
When the air temperature is closer to the Wet Bulb Temperature, the Relative Humidity tends to be higher. Relative humidity is the ratio of water vapor in the air to the amount of water the air can hold at a given temperature and pressure, expressed as a percent. Warm air can hold more water vapor than cold air; therefore, if the amount of water in the air stays the same and the temperature increases, the relative humidity decreases. However, when air temperature and wet bulb temperature are similar, it indicates that the air is nearly saturated with water vapor, and the relative humidity is approaching 100%, making the air very moist and potentially leading to fog or precipitation if conditions are right.
The product of 279 and which number has three decimal places?
1.4
2.741
32.4
72.43
Answer:
2.741
Explanation:
it has three decimal places unlike the other numbers provided in the question.
The correct option is B. The product of 279 and 2.741 is 765.279, which has three decimal places.
To determine which number, when multiplied by 279, results in a product with three decimal places, we can check each option.
1. Option A: 1.4
279 x 1.4 = 390.6
This has only one decimal place, not three.
2. Option B: 2.741
279 x 2.741 = 765.279
This has three decimal places.
3. Option C: 32.4
279 x 32.4 = 9051.6
This has one decimal place, not three.
4. Option D: 72.43
279 x 72.43 = 20295.57
This has two decimal places, not three.
The correct question is:
The product of 279 and which number has three decimal places?
A. 1.4
B. 2.741
C. 32.4
D. 72.43
What are two ways scientists classify
organisms?
Answer:
All living organisms are classified into groups based on very basic, shared characteristics. Organisms within each group are then further divided into smaller groups. These smaller groups are based on more detailed similarities within each larger group.
an organized way to collect and record scientific observation using a
An organized way to collect and record scientific observation using a Hypothesis
Explanation:
Hypothesis is known as initial building block in scientist method. Hypothesis is written in the form of statement. It is based on theories and knowledge. It is proposed between two variables and is mainly classified as independent and dependent hypothesis.
There are six forms of hypothesis. They are simple, complex, Empirical, Null. Altered, Logical and statistical. Relation between two variable predictions is simple hypothesis. On the other side complex hypothesis is the relationship between two or more variables.
The presence of lactic acid in the cell of an animals muscle tissue is an indication that the
Answer:
The animal has been performing vigorous activity with an insufficient oxygen availability in its muscles.
Explanation:
Lactic acid is an alpha-hydroxy acid (AHA) that is fundamental in the biochemical processes of the body.
During normal levels of oxygen in the body, the carbohydrates that are present in the body are transformed into water and CO2. On the other hand, when oxygen levels are low, lactic acid is produced.
Therefore, when an animal is performing vigorous exercise and the levels of oxygen in the body are low or insufficient, the muscles begin to respire anaerobically and, instead of CO2 and H2O, lactic acid is produced.
So, the presence of lactic acid in the cell of an animals muscle tissue is an indication that the animal has been performing vigorous activity with an insufficient oxygen availability in its muscles.
Muscle cells have been active during a period of oxygen deficiency
Lactic AcidLactic acid is a naturally occurring organic acid. In its solid state, it is white and miscible with water.Cell respiration, glucose synthesis, and molecular signaling are all aided by it.The presence of lactic acid in the cell of an animals muscle tissue is an indication that the muscle cells have been active during a period of oxygen deficiency.For more information:
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What is one similarity between active and passive transport?
Group of answer choices
both involve producing new cells
both involve moving substances against their concentration gradient
both involve moving substances across a membrane
both involve using chemical energy
Answer:
The correct answer is both involve moving substance across the membrane.
Explanation:
Passive transport is one of the most important membrane transport process which helps in transport of polar molecules and gases along their concentration gradient across the plasma membrane.No addition energy is required to carry out passive transport because during passive transport molecules move from high concentration region to the region of low concentration.
Active transport is a specific type of membrane transport process which helps in the passage of ions against their concentration gradient across the plasma membrane.As the ions are moving against their concentration gradient additional chemical energy is required to carry out their uphill transport.
Final answer:
Both active and passive transport involve the movement of substances across a cell membrane, which is their core similarity.
Explanation:
One similarity between active and passive transport is that both involve moving substances across a membrane, therefore The correct answer to the question regarding one similarity between active and passive transport is that both involve moving substances across a membrane. While active transport requires energy, often in the form of ATP, to move substances against their concentration gradient, passive transport does not require energy and substances move along their concentration gradient, from high to low concentration. However, regardless of whether substances are moved via active or passive transport, the movement across the cell membrane is the core similarity between the two modes of transport.
If you were to hike the distance from Point A to Point B, what would be the gradient of your climb?
Final answer:
The gradient of a hike represents the steepness of the climb. The specific gradient of a hike from Point A to Point B depends on the change in elevation and horizontal distance between the two points. In the given example, the gradient is calculated to be 13%.
Explanation:
The gradient of a hike represents the steepness of the climb. It is a ratio of the change in elevation to the horizontal distance traveled. In this case, if you were to hike from Point A to Point B, the gradient of your climb would depend on the specific locations of Point A and Point B, as well as the change in elevation between them.
For example, if Point A is located at 3440' and Point B is located at 3720' with a rise of 280', and the run is about 2200', then the average slope or gradient would be calculated as (280)(100)/2200= 13%.
Therefore, the gradient of your climb would be 13% if you hiked from Point A to Point B.
PLZ ANSWER
Sexual reproduction involves sex cells. The female reproductive cell is a(an) _______
and the male reproductive cell is a(an) _______
. The male and female sex cells combine in a process called fertilization to form a ______
that eventually grows and develops into an offspring.
Answer:
[see explanation]
Explanation:
(This applies with human reproduction)
The female reproductive cell is a(an) egg cell. The male reproductive cell is a(an) sperm cell.The egg and sperm would combine to form a zygote, which would develop into a child.Sexual reproduction involves sex cells. The female reproductive cell is an egg or ovum and the male reproductive cell is a sperm.
What is sexual reproduction?The male and female sex cells combine in a process called fertilization to form a zygote that eventually grows and develops into an offspring.
Sexual reproduction is a type of reproduction in which genetic information is exchanged between two individuals of the same species to produce offspring that are genetically diverse from their parents. This genetic diversity is achieved through the fusion of gametes, or sex cells, which contain half the genetic material of the parent organism.
In sexual reproduction, the male and female individuals produce specialized cells called sperm and eggs, respectively. These cells combine through a process called fertilization, which results in the formation of a zygote. The zygote then undergoes cell division and differentiation to form an embryo, which eventually develops into an offspring.
Sexual reproduction has several advantages, including genetic diversity, which allows for greater adaptability and survival in changing environments, and the ability to eliminate harmful mutations through genetic recombination. However, sexual reproduction also requires a significant amount of energy and resources compared to asexual reproduction.
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what are the important elements in the design of a polynesian charts and what does each show
Answer:
a) Stick/palm ribs/ coconut fiber which represented the water and oceanic/sea wave patterns
b) Stone/coral pebbles / shells to represent the land.
Explanation:
Polynesian stick chart is a form of navigational tools used to discover the sparsely distributed island. They predominantly used following elements
a) Stick/palm ribs/ coconut fiber which represented the water and oceanic/sea wave patterns
b) Stone/coral pebbles / shells to represent the land.
The combination of these stick and pebble was used to represent the interaction of ocean waves with the island. However, these navigational charts did not represented an exact weather condition.
The important elements in the design of Polynesian charts include the compass rose, stick charts, and celestial navigation using stars and constellations. These elements helped Polynesians navigate the open ocean and discover new islands.
Explanation:The important elements in the design of Polynesian charts are:
Compass Rose: It shows the direction of different winds and currents.Stick Charts: These charts depict wave patterns and island locations, helping Polynesian navigators find their way.Stars and Constellations: Using celestial navigation, Polynesians used stars and constellations to determine their position at sea.These elements were crucial for Polynesians to navigate the open ocean and discover new islands.
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Help ASAP
What is the FUNCTION OF THE SETAE?
Answer:for filter feeding
Explanation:setae are used by filter feeders such as small crustaceans,baleen whales and marine prions.these organisms feed on suspended Feed in waters and so need a structure that allows them to extract the suspended particles from the water
Form an opinion: How might life be different if we didn’t manipulate naturals resources to manufacture synthetic products?
Answer:
Well For better? the better- we recycle water bottles so that there could be other important or more water bottles made. but for worse if you cut down trees for human needs .. but your also taking animals home
New evidence does not change what scientists already believe to be true.
Answer: TRUE
Explanation:
The speed of sound is the measure of how far it travels in a certain amount of time. The speed of sound will differ depending on which of the following?
A) The frequency of sound.
B) Where the sound originated from.
C) The pitch of sound.
D) The material the sound is traveling through.
Explanation:
The speed of sound depends on the elasticity and density of the medium through which it is traveling. In general, sound travels faster in liquids than in gases and faster in solids than in liquids. The greater the elasticity and the lower the density, the faster sound travels in a medium.
Answer:
Option D is the correct answer.
Explanation:
The speed of sound refers to the distance travelled per unit time by a sound wave as it moves. At 68º F its speed in air is about 343 meters per second, or 767 miles per hour or a kilometer in 2.9 seconds. There are two big factors to be considered: first one is temperature and the material the sound is traveling through, so the last option is the right answer.