Answer:
Mate two dogs that have the desired trait
Explanation:
In order to breed dogs for a particular trait one ought to mate two dogs that have the desired trait. This process is referred to as artificial selection or selective breeding.
Selective breeding refers to a process by which new organisms with desirable characteristics or traits are developed. Breeders select two parents having the desired phenotypic trait to reproduce thus yielding offspring with the desired trait.
Answer: Mate two dogs that have the desired trait
Explanation:
How do organism in a ecosystem survive?
Answer:
To answer this question, we must define the two key terms within this question, organism, and ecosystem.
Organism, by definition, is "one animal, plant, or single-cell".
Ecosystem, by definition, is a "community of organisms interacting with their environment".
For an organism to survive in a certain ecosystem, the ecosystem must provide a certain amount of basics:
1) Food: The ecosystem must provide edible substance to the organism, whether as plants, other animals, or a way to get nutrients.
2) Water: Of course, there are plants and animals that can survive long time without water. However, water is a key component to the survivability of the organism.
3) Shelter: Most animals must have a long-term shelter against the weather. Shelter also provides protection against predators.
4) A way to reproduce: Whether an animal reproduces asexually or sexually, the organism must have a way to keep the population alive. Remember that the disappearance of an organism can greatly affect the food chain & web, and can lead to the destruction of the ecosystem.
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Organisms in an ecosystem survive by transforming energy through photosynthesis or consumption, maintaining balance by competing for resources, avoiding predators, reproducing, and not degrading their environment.
Organisms in an ecosystem survive by maintaining a balance through the flow of energy and the cycling of nutrients. The energy needed by ecosystems primarily comes from sunlight. Plants conduct photosynthesis using sunlight to produce food, while animals consume plants or other animals to gain energy.
In addition to obtaining energy, organisms must maintain a stable internal environment, compete for limited resources, and reproduce successfully. Ecosystem stability requires a healthy balance among various species populations, each having different reproductive strategies and competing in their physical and geographic environment.
Consider a pond ecosystem as an example: it includes birds, fish, frogs, insects, plankton, and aquatic plants. These organisms compete for resources such as light and nutrients, avoid predators, and strive to reproduce, ensuring their survival without degrading their habitat.
Sarah's family would like to book a cruise to the Caribbean, but they are worried about severe weather during their trip. According to the National Weather Service, most severe storms, like hurricanes, occur in the late summer and early fall in that region. Based on scientific knowledge, when should Sarah's family book their cruise? August March October September
Answer: Option (2)
Explanation: The most favorable time for Sarah's family to go for the trip is in the month of March, that falls under the spring season. During this time, there occurs no hurricanes.
Soon after the end of the spring season, summer begins i.e from June, the typical weather conditions gradually builds up that favors the formation and occurrence of hurricanes. Hurricanes are very frequent from June to December, that is by the end of the autumn, hurricane again starts disappearing. Most of the severe hurricanes occurs in the month of September.
Thus the correct answer is option (2).
Some technologies have a number of negative effects. Which is a negative outcome of the technology of pesticides?
A. Increased food supply
B. Cheaper food
C. Creation of more jobs
D. Harmful to humans if used improperly
Answer: Option D.
Explanation:
Pesticides are the chemical substances which are use to to control pests in agriculture.
Overuse of Pesticides is a raising concern for human health. Pesticides contains several lethal or toxic chemicals which are more heat stable and water soluble. Exposure to pesticide can cause several health issues such as neurological health effects, cancer and reduces efficiency of immune system.
Hence, the correct option is D.
Which is true about glycolysis? (Select all that apply.)
A. It converts glucose into pyruvate.
B. It produces a large amount of ATP.
C. It occurs in the cytoplasm of the cell.
D. It produces NADH.
Answer:
your answer is A. it converts glucose into pyruvate
Explanation:
because this called glycolysis
Answer:
A. It converts glucose into pyruvate.
C. It occurs in the cytoplasm of the cell.
Explanation:
Glycolysis is a process that can be defined as a metabolic pathway in which one molecule of glucose is broken down into two molecules of pyruvic acid. It occurs in the cytoplasm of the cell of any living being, be it anaerobic or aerobic. The process is not seen only in viruses.
Glycolysis is a process that involves ten enzymatic reactions and results in the formation of pyruvic acid from glucose. For the process to occur, it is necessary that the glucose molecule is initially activated by the addition of phosphates, which come from two molecules of ATP. Despite the use of ATP, the process of glycolysis is advantageous, since a total of four molecules of ATP are produced at the end of the reactions. Therefore, the net balance of glycolysis is 2 ATPs.
Which of the following is a question of morality?
A.) Delierately reporting false data
B.) Accidentally reporting false data
C.) Kepping a sloppy record of experimental observation
D.) Condition a drug experiment which will harm a lab rats
Answer:
D-Condition a drug experiment which will harm a lab rats
Explanation:
think about the question and it will make sence,poor rats :(
♡
Answer:D)-Condition a drug experiment which will harm a lab rats
All rock on the ocean floor is less than 180 million years old because _____.
the basaltic rock seafloor has been ground away by fine sediment
older rock would have returned to the mantle through subduction
reverse polarity removed older rock strips magnetized in a different direction
the oceans did not exist until more recently than 180 million years ago
Answer:
older rock would have returned to the mantle through subduction
Explanation:
The reason why the ocean floor is only 180 million years old even though the oceans exist much longer then that on Earth, is because of the movement of the tectonic plates, a process through which the oceanic plates are getting subducted and melted into the mantle. The oceans that have existed prior to the ones that exist today haven't really left significant traces of their crust behind them. The reason for this is that the oceanic plates over which these oceans were got below the continental plates, thus got subducted. As they got subducted, they got destroyed in the mantle. The oceanic crust that we have nowadays is only 180 million years old, but as the time passes, the older oceanic crust will face the same destiny, and there will constantly be new one replacing it.
All rock on the ocean floor is less than 180 million years old due to the process of subduction. When oceanic plates collide, the denser one is forced beneath into the mantle, where it's recycled into new rock. Thus, the seafloor never gets too old as it's frequently replenished.
Explanation:All rock on the ocean floor is less than 180 million years old because older rock would have returned to the mantle through subduction. When discussing the age of the ocean floor, it's crucial to consider the process of plate tectonics, specifically subduction zones. The Earth's lithosphere is divided into several large and small pieces known as tectonic plates. These plates are in constant motion, and when an oceanic plate collides with another oceanic or continental plate, the denser one is forced under the less dense one. This process is known as subduction. As the plate is forced into the mantle, it melts and is recycled into new rock. This ensures that the seafloor does not get too old because it's continually being replenished with new rock pushed up from spreading centers, where new oceanic crust is created.
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What is the final product of DNA transcription?
A. A chain of amino acids
B. Two copies of a DNA molecule
C. Single strands of DNA
D. Complementary strands of mRNA
D. Complementary strands of mRNA
In transcription, RNA is made from RNA.
The final product of DNA transcription is complementary strands of mRNA.
What do you mean by transcription?Transcription is the process of copying a segment of DNA into RNA. The segments of DNA transcribed into RNA molecules that can encode proteins are said to produce messenger RNA. Other segments of DNA are copied into RNA molecules called non-coding RNAs.
During transcription, a piece of DNA that codes for a specific gene is copied into messenger RNA (mRNA) in the nucleus of the cell. The mRNA then carries the genetic information from the DNA to the cytoplasm, where translation occurs.
The purpose of transcription is to make RNA copies of individual genes that the cell can use in the biochemistry. The purpose of translation is to synthesize proteins, which are used for millions of cellular functions.
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Which type of mutation occurs in reproductive cells and can be passed to offspring?
somatic mutation
germline mutation
point mutation
frameshift mutation
Answer:
germline mutation
Explanation:
It is germ line mutation which can be passed on from one generation to another that means from parents to off springs. The term germ relates to the one which is capable of germination i.e. reproduction.
There are two types of cells in our body (1) somatic cells (2) germ cells.
Germ cells are the cells which are produced in the primary sex organs like gonads. Since gonads are responsible for producing gametes (ovum and sperms) which are capable of reproducing an entire organism after fertilization, they are regarded as germ cells. Somatic cells on the other hand are not responsible for fertilization. So, if a mutation occurs in germ cells which is known as germline mutation, it will pass on to the off spring while a mutation in somatic cells will be restricted to the individual without being passed on to the next generation.
18. What's a ventifact?
A. A wind-borne deposit of sand
B . The side of a sand dune protectechirom wind
C. A wind-borne deposit of nutrient-rich soil
D. A rock formation shaped naturally by wind
your answer would be D
the answer is d. it's a stone shaped by the erosive action of windblown sand.
Index fossils are
A. fossils that are found in limestone.
B. relatively rare and difficult to find.
C. imprints of organisms known to have lived during a specific time period.
D. fossils of species that still exist today.
Answer: C. imprints of organisms known to have lived during a specific time period.
Explanation:
Index fossils are the fossils which are used to compare the age of the other fossils. These fossils can be used for relative comparison and providing the relative age of the fossils. These fossils can be considered to be living in a particular geological time. These fossils exhibit a wide geographical distribution but exhibit a short time duration or specific time of their survival.
These fossils can be used for determining the geological time scale of the organisms or rocks as these allows the correlation of the entities with the strata.
These fossils can be found as imprint fossils over the surface of the rocks as the organisms after death buried inside the heap of earth. Their soft body parts are consumed by the microbes and the hard remains are left. These hard remains leave their impression over the hard surfaces such as rocks.
On the basis of the above description, C. imprints of organisms known to have lived during a specific time period. is the correct option.
seed plants that lived during the carbon fires impact life on earth today because
The seed plants are survivors.
Which chamber of the heart pumps deoxygenated blood to the lungs?
A.
right ventricle
B.
left ventricle
C.
right atrium
D.
left atrium
Answer:
The correct answer would be option A.
Explanation:
The blood returned to the heart in the right atrium from different parts of the body is deoxygenated, which is transferred to the right ventricle to be pumped to the lungs by the pulmonary artery for removal of the carbon dioxide and oxygenate again the blood.
The right ventricle chamber of the heart pumps back blood to the lungs to take up oxygen. The left part of the heart gets the oxygen rich blood from the lungs and pumps it to all parts of the body.
Thus, the correct answer would be option A.
What would most likely happen if a person increased the amount of saturated fat in his or her diet
Final answer:
Increasing the amount of saturated fat in the diet can lead to an increased risk of cardiovascular disease, while a diet high in unsaturated fats can reduce this risk.
Explanation:
A person who increases the amount of saturated fat in their diet is likely to experience negative health effects, particularly an increased risk of cardiovascular disease. Saturated fats are found in foods such as butter, cheese, lard, and fatty meats. Consuming these foods in excess can lead to unhealthy weight gain and elevated lipid levels in the blood, which can contribute to the development of heart disease.
On the other hand, a diet high in unsaturated fats, particularly omega-3 fatty acids found in cold-water fish like salmon, is believed to reduce the risk of heart disease. Therefore, it is important to balance the consumption of saturated fats with healthier dietary choices to maintain good cardiovascular health.
Which process helps make meiotic cells genetically different and occurs during prophase I, but not during prophase II?
Answer:
Crossing over is the process in which the homologus chromosomes exchange their chromatids and exchange the genetic material and produce variation
it is the process that make meiotic cells genetically different and occurs during prophase I, but not during prophase II
hope it helps
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Explanation:
Answer:
The correct answer is crossing over.
Explanation:
Crossing over maintains genetic diversity within a population of an organism, allows the various genetic combination to be transferred from parents to their offspring.
Crossing over of chromatids pair occurs during prophase-I, it is the very first phase of meiosis-1. In this phase, the 3rd stage is pachytene in which genetic recombination occurs because of the formation of recombinant nodules.
The first phase of meiosis II is prophase II in which the nuclear envelope breaks and the formation of the spindle apparatus occurs.
Thus, the correct answer is crossing over.
A.I. Oparin hypothesized that _______ was preceded by a period of chemical evolution.
Answer: The answer is cellular life.
What three conditions must be present for minerals to form through natural processes? Why are minerals considered inorganic substances? How do oxides differ from other minerals that contain oxygen atoms? How is a sulfide different from a sulfate? What makes native elements unique?
Answer:
not 100% percent sure on the first one, but
2. When a mineral is nutritionally inorganic, it means that it is without any organic (carbon-based) molecule. When a mineral is nutritionally organic, it means that it is chelated or bound to organic molecules, such as an amino acid.
3. Oxides are distinguished from other oxygen-bearing compounds such as the silicates, borates, and carbonates, which have a readily definable group containing oxygen atoms covalently bonded to an atom of another element.
4. any compound of sulfur and a metal or other electropositive element or group while sulfate is (organic chemistry) any ester of sulfuric acid.
5.Native element. Even a single native element can occur in widely diverse environments. Native iron ( kamacite ), for example, is found primarily in meteorites. The iron meteorites called hexahedrites are almost completely composed of kamacite, and in those called octahedrites it is the principal constituent.
Answer:
1.For minerals to form through natural processes, the correct elements must be present in the right amounts. The physical and chemical conditions, such as temperature, pressure, and pH, must be favorable. In addition, there must be enough time for the atoms to become ordered. Otherwise the mineral grains will remain very small.
2.In most cases, minerals are considered inorganic substances because they’re not derived from or made by living matter, such as plants and animals. There are a few minerals, however, that are produced by living organisms.
3.In oxides, the oxygen atoms bond directly to one or more metals. In other minerals, such as carbonates, sulfates, and silicates, the oxygen atoms are part of molecules in which the oxygen is already bonded to another element, such as carbon, sulfur, or silicon. These molecules then bond to other elements.
4.In sulfides, sulfur atoms bond with one or more metals. In sulfates, the sulfur atoms are part of a molecule that also contains oxygen. The sulfate molecule is what bonds to other elements.
5.Native elements are unique in that they’re composed of atoms of a single element. For example, gold is composed only of gold atoms. Silver is composed only of silver atoms.
In a certain population of wolves, a mutation takes place and several wolves
that are remarkably faster and stronger than the other wolves are born.
According to the theory of evolution by natural selection, what is likely to
happen to this trait after several generations?
The mutation causing increased speed and strength in wolves will likely lead to those traits becoming more common over generations, as wolves with these advantageous traits will survive and reproduce more successfully, altering the allele frequency in the population.
Explanation:According to the theory of evolution by natural selection, the trait of being faster and stronger is likely to become more common in the population of wolves over several generations. Wolves with these advantageous traits are more likely to survive and reproduce, thereby passing on the advantageous genes to their offspring. This will result in an increase in allele frequency for these traits within the wolf population. Over time, as environmental pressures like predation and competition for resources come into play, these traits can become fixed if they significantly improve the wolves' survival and reproductive success.
For example, in a predator-prey relationship, as wolves hunt caribou, only the fastest and strongest wolves will be successful in capturing the swiftest preys. This will influence the evolution of the wolf population, because only those with favorable traits will have enough food to survive and reproduce. This is an example of coevolution. Similarly, a mutation that results in a beneficial trait, such as increased speed or strength, will be passed onto the offspring if it improves an individual's fitness in the environment. Over time, such beneficial adaptations can become widespread within the population, leading to evolutionary changes.
What prevents Odyssey from killing the sleeping cyclops
Odysseus refrains from killing the sleeping Cyclops to ensure he and his men are not trapped inside the cave, as the Cyclops is the only one capable of moving the boulder blocking the exit. Instead, Odysseus blinds the Cyclops and uses a clever escape plan involving the Cyclops' sheep.
What Prevents Odysseus from Killing the Sleeping Cyclops
Odysseus does not kill the sleeping Cyclops because it would have left him and his men trapped in the Cyclops' cave. The Cyclops, named Polyphemus, is the only one strong enough to move the boulder that blocks the cave's entrance. Despite having the opportunity to kill Polyphemus in his sleep, Odysseus realizes that doing so would doom him and his crew to death, as they would be unable to escape the locked cave.
By blinding the Cyclops instead of killing him, Odysseus devises a clever escape plan. When the blind Polyphemus removes the boulder to let his sheep out to graze, Odysseus and his men escape by hiding under the bellies of the sheep. This clever trick allows them to evade the Cyclops' grasp and ensure they are not left trapped without a means of escape.
Odysseus's restraint from killing the Cyclops showcases his cunning and ability to think strategically under pressure, which are traits heralded in the epic.
how do scientists use letters to represent alleles
Answer:
Scientists use certain letters to represent different types of genes, known as alleles, which come together to create the genotype
What do scientists need to look at before developing an argument
Answer: validity of data, claims, hypotheses, and observations
Explanation:
Answer:
Making an argument in the scientific method is performed while communicating the result to the scientific community either through conferences or through scientific journals.
The argumentation is done to test the authenticity of the scientific method as well as the verification of the scientific steps which is to be followed in the scientific research.
Since the argumentation is done by the people of the scientific community therefore, they look into the steps of the scientific methods like the observations, hypothesis, results, conclusion and the evidence.
Lumps of iron and manganese ore called ________ can be harvested from the seafloor near underwater volcanoes.
Answer: Poly-metallic nodules
Explanation: Poly-metallic nodules are generally considered to the manganese nodules, formed due to the accumulation of rocks and mineral aggregates at the seafloor, adjacent to the underwater volcanoes.
This nodules appears in concentric layers, i.e these are the layers of manganese hydroxide and iron hydroxide. They are commonly found at the sea floor and have economical importance.
Eggs and sperm are examples of _____?
Answer:
Gametes
Explanation:
Gametes are an organism's reproductive cells. They are also referred to as sex cells.
NOT: diploid cells, somatic cells or zygotes
Eggs and sperm are examples of gametes.
What type of reproduction are egg and sperm?Gamete reproduction begins with sperm and egg cells, which are produced through a process called meiosis. These cells are referred to as haploids because they contain half of the number of chromosomes as the parent.
What is called reproduction?Reproduction is a biological process by which an organism reproduces an offspring that is biologically similar to the organism. Reproduction enables and ensures the continuity of species, generation after generation. It is the main feature of life on earth.
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How does natural selection change the
phenotypes within a population over time?
Answer:
Phenotype is the set of observable characteristics of an individual resulting from the interaction of its genotype with the environment. Essentially its physical characteristics. According to natural selection, some characteristics are more likely to survive and thus pass on to children of a generation. Therefore, over time said characteristics such as the ability for an organism to blend in with its environment get passed along and become more prominent within a population ultimately making the appearance (or phenotype) of the population more synonymous with the characteristics "chosen" by natural selection.
Explanation:
In Reebops, the gene for ears is carried on the X chromosome.
What type of inheritance is being described?
codominance
sex-linked
complete dominance
incomplete dominance
Where does the heat for geothermal energy come from?
A. From the sun's ultraviolet rays
B. From magnetic waves in the Earth
C. From steam produced by the Earth
D. From warm sections of the ocean
Answer:
C. From steam produced by the Earth
Explanation:
Geothermal energy
This energy is produced , from with in the surface of the earth .
Water or the steam are the carrier of this energy , which comes out from the earth's crust , and this energy can be used for generating electricity .
Hence , this energy is very useful and beneficial for people on Earth .
Hence , the correct answer fro the given statement of the question is ( c ) .
From steam produced by the Earth the heat for geothermal energy come from. The correct option is C.
Thus, The production of complex molecules from simpler ones is a component of synthetic processes, commonly referred to as anabolic reactions.
These processes are essential for the development, maintenance, and repair of bodily tissues and structures when seen in the context of the body.
Smaller molecules are joined during synthesis reactions to create larger, more complex ones. For instance, amino acids are used to make proteins, nucleotides are used to make nucleic acids, and simple sugars are used to make polysaccharides.
Thus, From steam produced by the Earth the heat for geothermal energy come from. The correct option is C.
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Carbohydrates are important in the body because they contribute to the body's ability to A. produce ATP. B. regulate temperature. C. produce amino acids. D. absorb water.
Answer:
The correct answer option is A. produce ATP.
Explanation:
Carbohydrates are important in the body because they contribute to the body's ability to produce ATP.
When a person eats food, that food is digested by breaking down the carbohydrates to in turn produce an energy rich component called ATP (adenosine triphosphate).
The carbohydrates are broken down by certain enzymes in the small intestine in the form of glucose which then yields ATP to drive the cell.
What is meant by the following statement?
The cell membrane is said to be fluid.
Answer:
It moves sideways
Explanation:
Ape-x
The cell membrane is said to be fluid. D. it moves sideways
At physiological temperatures, cell membranes are fluid; at cooler temperatures, they become gel-like. Scientists who model membrane structure and dynamics describe the membrane as a fluid mosaic in which transmembrane proteins can move laterally in the lipid bilayer.
What part of the cell membrane is fluid?According to the fluid mosaic model, the plasma membrane is a mosaic of components—primarily, phospholipids, cholesterol, and proteins—that move freely and fluidly in the plane of the membrane.
Why is the membrane fluid?Cell membrane is fluid because individual phospholipid molecules and proteins can diffuse within their monolayer and thus move around. The fluidity is affected by: The length of the fatty acid chain. Here, the shorter the chain the more fluid is the membrane.
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Which statements about mutations are true? Check all that apply
Answer:
A gene mutation is a permanent alteration in the DNA sequence that makes up a gene, such that the sequence differs from what is found in most people. Mutations range in size; they can affect anywhere from a single DNA building block (base pair) to a large segment of a chromosome that includes multiple genes.
Explanation:
Answer:mutations are rare
most forms of cancer are caused by somatic mutations
Explanation:
45 POINTS
How are people today being protected from tsunamis?
Earthquake data is analyzed to detemrine if a tsunami is likely, and if so, warnings are sent out.
Areas in tsunami risk zones are no longer heavily populated.
Radar is used to measure wave heights regularly.
Meteorologists study the winds to determine if wave heights will be large.
Answer:
A earthquake data is anlayzed to determine if a tsunami is likely and if so warnings are sent out
Explanation:
They need to know where it is and where it going tostike also theyy warn the people that its going to stike so they have enough time to evacuate
Answer:
Option A, Earthquake data is analyzed to determine if a tsunami is likely, and if so, warnings are sent out.
Explanation:
Warnings for Tsunami can be detected by seismograph (a device that measures earthquake), which is essential for observing any kind of movement of the tectonic plates below the surface of ocean. Pre-determination of any such event helps in forecasting the calamity much before its onset and allows the concerned department of any city to send warning messages to the resident of the city , so that they can move to safer areas.
Hence, option A is correct
What is the space in the middle of the mitochondria called?
I think the Matrix.