Answer:
D
Explanation:
Finches living on the Galapagos Islands were critical for Darwin to develop his ideas. What key observation did he make about the finches?
A. The finches' beaks were colored differently, providing camouflage within their unique environment.
B. The finches' feathers were colored differently, providing camouflage within their unique environment.
C. The finches' beaks were uniquely adapted as tools for them to eat the food that was available to them.
D. The finches' feathers were structurally different to allow them to fly at different heights and speeds, depending on their local environment.
The finches' beaks were uniquely adapted as tools for them to eat the food that was available to them. Therefore, option (C) is correct.
The Galápagos Islands are located in close proximity to the coast of South America. The finches migrated from there to these islands. Finches were observed by Darwin to be varying on each island he explored. He noticed that the finches had beaks of varying colours.
He noticed that the food available varied on different islands, in addition to the difference in colour.The sizes of seeds were different on different islands. Okay, so the finches were able to adapt to their environments based on the types of food that were available. This made it easier for them to survive.
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What happens to the energy in the bonds in glucose?
The energy is transferred to oxygen.
The energy is transferred to carbon dioxide.
The energy is transferred to water.
The energy is transferred to ATP.
Answer:
D The energy is transferred to ATP
Explanation:
Which of the following would be considered a limited resource in the lower depths of the ocean? a. water b. sunlight c. prey d. predators Please select the best answer from the choices provided A B C D
Answer:
Option b is correct
Sunlight
Explanation:
If a resource is limited then it will be available in the least quantity.
Sunlight as a resource is not uniformly distributed along the depths of the ocean. The uppermost layers of the ocean receive the most sunlight while the lower depths do not receive any sunlight at all. Hence sunlight would be considered a limited resource in the lower depths of the ocean
Answer:
B- sunlight
Explanation:
Edge2021
Match the following with their proper definitions
Answer:
1. Biomass- a material made from plants or animals
2. Energy- a property capable of causing changes in matter
3. Fossil Fuel- a carbon based fuel derived from living matter that existed in prehistoric times
4. Kinetic Energy- the energy of a moving object
5. Potential Energy- stored energy
Explanation:
When a plant dies, most of the nitrogen in the plant's tissues is:
Upon plant death, nitrogen is reverted back to ammonium ions through ammonification, which is later transformed into nitrate, a plant-usable form.
When a plant dies, most of the nitrogen in the plant's tissues is released back into the environment in the form of ammonium ions (NH4-). This process is known as ammonification, carried out by decomposers breaking down the organic compounds of the dead plant. Eventually, the ammonium ions can be converted by soil bacteria into nitrate (NO3-), which is a form other plants can readily use.
18. How do archaea and bacteria differ?
A. Archaea can exist as multicellular organisms, while bacteria are unicellular.
B. Archaea are eukaryotes, and bacteria are prokaryotes.
C. Archaea can live in environments with extreme conditions such as temperature, while bacteria can't.
D. Archaea use RNA as their genetic material, while bacteria use DNA.
Answer:
C. Archaea can live in environments with extreme conditions such as temperature, while bacteria can't.
Explanation:
Archaea are capable of surviving under the extreme condition and so are considered as extremophiles.
However bacteria are more suited towards mild climates and would die in extreme conditions
Archaea are found in unusual environments like in hot springs, ocean depths, salt brines, while bacteria are found everywhere like in the soil, water, living and non-living organisms.
Answer:c archaea can live in environment with extreme conditions such as temperature, while bacteria can't.
Explanation:
assuming that this is a healthy eco system, which of following organisms would you expect to have the smallest population?
A. Acorn
B. Cougar
C. Deer
D. Mouse
Answer: A. Acorns
Explanation: Typically when you look at the food web and really put your mind to it, you notice that "Acorns" is being eaten by squirrel, mouse and deer. While the other options just have two organisms feeding on them.
Why i pick Acorn is because its also an organism. When you said organism, you are both referring to animals, plants, diseases, viruses etc. The deer is only having 2 natural enemies.
Which structures carry out photosynthesis in some bacteria?
A. photosynthetic membranes
B. thylakoids
C. cell walls
D. chloroplasts
Answer:
Photosynthetic membranes
Explanation:
how do organisms grow
Hello! My name is Zalgo and I am here to help you out on this amazing day. Organisms grow, but only certain organisms are capable of growing. The meaning of growing is "to get bigger/expand" and the way that multicellular cells grow is by making more cells. Plants also have special tissues called "Meristems" where the growing process happens. Single celled organisms (unicellular organisms) increase their numbers by "dividing" and making more cells like themselves.
I hope that this helps! :3
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environmental scientists are uncovered with methods to preserve natural resources
true or false
Ms. Huskey asked her science class to develop a scale model of the solar system where the sun has a diameter of 1.0 m given that the sun has a diameter of 1,392,000 km. How large should Shannon make the smallest planet in his scale model of the solar system?
Answer:
3.5 mm
Explanation:
Given the size of the sun, the scale ratio is :
[tex]\dfrac{1m}{1,392,000km}[/tex]
Now to determine how large the smallest planet should be, you just need to make sure that its measurement is proportion to that scale. According to your table, the smallest planet is Mercury with a diameter of 4,879.4 km. Now we can write a proportion for this, to determine the scale:
[tex]\dfrac{1m}{1,392,000km}=\dfrac{x}{4,879.4km}[/tex]
Cross multiply then divide to solve for x.
[tex]\dfrac{1m\times 4,879.4}{1,392,000km}=x\\\\\dfrac{4,879.4m}{1,392,000}=x\\\\0.00350m=x[/tex]
So the smallest planet would be 0.0035m. Since your choices are in mm (and that is a very small number to estimate) we can convert it into mm.
1 meter = 1,000 millimeters
[tex]0.0035m\times\dfrac{1,000mm}{1m}=3.5mm[/tex]
The answer is then 3.5mm.
To maintain the scale proportion, if the sun is 1m in diameter in the model, Shannon should make the smallest planet, Mercury, 3.5 mm in diameter.
Explanation:The smallest planet in our solar system is Mercury, which has a real diameter of approximately 4,879 km. Given that the Sun's real diameter is 1,392,000 km, to find out how large Shannon should make Mercury in his scale model of the solar system, we have to keep the proportions the same.
To achieve this, we need to set up a proportion using real-life sizes and scale sizes. In this case, the proportion would be (4,879 km / 1,392,000 km = x / 1 m), with 'x' being the diameter of Mercury in the model. Solving for 'x', we get x = (4,879 km / 1,392,000 km) * 1 m, which equals approximately 0.0035 m, or 3.5 mm. Therefore, in Shannon's model, if the Sun is 1m in diameter, the smallest planet, Mercury, should be 3.5 mm in diameter.
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if there are 300 worms in 100m2 of lawn , what is there population density
Answer:
3 worms per square meter
Explanation:
In order to get to the population density of the worms, we need to take a basic measurement for it. Since we have a land area in square meters, we will take the square meter as a basic unit. On the land of 100 square meters, we have 300 worms. In order to get to the result we need to use the simple formula for population density:
population density = population / land area
300 / 100 = 3
So we have a result of 3, thus meaning that the population density of the worms is 3 worms per square meter.
1. Based on the trend depicted in the graph, explain what you
think the relationship might be between organisms
performing respiration and the organisms performing
photosynthesis in this area of the world.
2. What effects might this steady increase of carbon dioxide
have on the organisms living in this area?
3. Describe the changes you would expect to see to this graph
if the population of cyanobacteria increased dramatically in
the ocean water surrounding Hawaii in 2003. Explain your
predictions.
1. The process of photosynthesis and respiration are often found in the same organisms, so they are directly connected. In this case, we have significant increase in the levels of carbon dioxide, and carbon dioxide is a crucial element in the process of photosynthesis. The more carbon dioxide there is, the more organisms can perform photosynthesis. Once the organisms are able to perform photosynthesis, the next step is that they need to use the created sugars from it to convert them into energy. The sugars combined with oxygen produce the energy for growth, thus we can say in this case that the increase of carbon dioxide has increased the amount of photosynthesis, which increased the amount of respiration.
2. The steady increase of the carbon dioxide will result in higher temperatures because it is a greenhouse gas that has the ability to trap the heat. This means that organisms that are better suited for warmer climates will thrive, while the others will either have to adapt, or go extinct. Also, the higher amount of carbon dioxide and warmer weather conditions will result in longer growing season, thus more producers will be able to thrive as the carbon dioxide is crucial for them to perform photosynthesis.
3. If the population of cyanobacteria starts to increase dramatically, then the area will experience multiple changes. The cyanobacteria will extract large amounts of carbon dioxide from the atmosphere, thus lowering its levels, while in the same time releasing large amounts of oxygen in the atmosphere. The graph will start to look much different as the carbon dioxide curve will be heading downward, and if the trend continues it will go even lower than its starting point of measurement in 1958, resulting in colder weather conditions and changes in the environment.
The relationship is inverse due to increasing the level of carbondioxide in the atmosphere.
There is a inverse relationship in the graph between organisms performing respiration and the organisms performing photosynthesis in this area of the world because the concentration of carbondioxide gas increases which shows us the increase of respiration rate as compared to the rate of photosynthesis.
The organisms present in this area experiences change in the climate which lowers their chance of survival. If the population of cyanobacteria increased dramatically in the ocean water then the concentration of carbondioxide gas in the atmosphere begins to decreases due to fixation of cyanobacteria so we can conclude that the concentration of carbondioxide gas decreases in the atmosphere.
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How is a recessive allele different from a dominant allele ?
Answer:
The dominant allele is the trait that shows when you have them paired together like Tt. You can also have TT and tt.
Explanation:
What are the three major types of rocks?
Answer: The three main types, or classes, of rock are sedimentary, metamorphic, and igneous.
Explanation:
The differences among them have to do with how they are formed.
Answer
Igneous Rocks.
Metamorphic Rocks.
Sedimentary Rocks.
Explanation:
a punnett square is used to determine the __
Final answer:
A Punnett square is a tool used in genetics to predict the genotypic and phenotypic ratios of offspring resulting from a cross between two parents, by taking into account the combinations of alleles and the rules of probability.
Explanation:
A Punnett square is used to determine the expected genotypic and phenotypic ratios of offspring from a genetic cross between two parents. When demonstrating a monohybrid cross, such as that between true-breeding pea plants with yellow and green seeds, the Punnett square visualizes all the possible combinations of alleles. For instance, with yellow seeds being the dominant trait (allele Y) and green seeds being recessive (allele y), a cross between a YY and a yy parent would result in all Yy offspring, predicting only yellow seeds in the first generation. This device makes it easier to see the statistical probabilities of inheriting certain traits.
To further illustrate, if we cross a white-eyed male fruit fly with a female that is heterozygous for red eye color, we would use a Punnett square to lay out the possible gene combinations and determine the ratio of offspring that will have the red or white eye color trait. By following the rules of probability and the pattern of inheritance (dominant and recessive traits), we can predict the phenotypic ratio of the offspring.
A Punnett square is used to predict the genotypic and phenotypic ratios of offspring from a genetic cross, showcasing the potential genetic makeup and expected physical traits based on the combination of parental alleles.
Explanation:A Punnett square is a diagram that is instrumental in predicting the genotypic and phenotypic ratios of offspring resulting from a genetic cross. Created by British geneticist Reginald Punnett, the Punnett square represents the different possible allele combinations from the parental gametes, thus showing the potential genetic makeup of the offspring.
For example, when crossing a true-breeding pea plant with yellow seeds (YY) with one having green seeds (yy), a Punnett square helps to visualize that all offspring will have the genotype Yy. This results from the dominant yellow seed allele (Y) masking the effect of the recessive green seed allele (y), leading to all offspring displaying yellow seeds. By applying the rules of probability, a Punnett square can show that each box, representing a potential zygote, has an equal chance of occurring, thus yielding the expected genotypic ratio among the offspring.
You are observing different types of cells in your science lab. One cell has
many chloroplasts. What is the most likely function of this cell?
A. Energy production
B. Photosynthesis
C. Reproduction
D. Digestion
That would be B photosynthesis
Photosynthesis takes place in chlorophylls of plant cells:)
Which of the following health care professionals would be best able to transition to a private practice?
B IS INCORRECT CHOOSE FROM A C D
Answer:
D
Explanation: Because a nurse doesn't have credentials like going to medical school nor residency, so nurse doesn't sound right. A health care admin is someone who doesn't really have any experience to having a private practice. Mind you, health care admin is like a manager type job, that's it, they are not practicing anything. and B is just no.
Answer:
(D) a social worker or mental health worker -a p e x
what factor makes the Hawaiian islands the perfect place for plant species to diversity
Answer:
The nutrient-rich soils.
Explanation:
The Hawaiian Islands surfaced between 400,000 and 5 million years ago. However, the entire undersea chain has been in existence for over 60 million years! Still, in geologic terms, the Hawaiian Islands are relative newcomers to Earth. These islands are isolated in the middle of the Pacific Ocean. They were created by volcanic activity from the "hot spot" in Earth’s crust. These underwater mountains eventually surfacecreating islands. The resulting volcanic soil is rich in nutrients. As Hawaii is located in a tropical region, the climate provides warm temperatures and an ample water supply. These resources provide all the requirements to support an abundance of plant life. An unoccupied landscape offers a wide variety of empty niches. This is the perfect recipe for plant diversification.
Its tropical location, Hawaii, enjoys mild temperatures and a sufficient supply of water. The climate offers comfortable temperatures and a plentiful supply of water. Resulting volcanic soil is rich in nutrients.
What is Tropical forest?Closed-canopy forests called tropical forests are those that are found within 28 degrees north or south of the equator.
They are extremely wet areas that see more than 200 cm of precipitation annually, either seasonally or year-round. The temperature ranges from 20 to 35 degrees Celsius.
The tropics of Cancer and Capricorn roughly define tropical woods, which are forested landscapes in tropical places that may also be influenced by other variables like prevailing winds.
It might be challenging to classify certain types of tropical forests. Tropical rainforests are found in Central and South America, western and Central Africa, western India, Southeast Asia, the island of New Guinea, and Australia.
Therefore, nutrient rich soil makes the Hawaiian islands the perfect place for plant species to diversity.
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How is the life cycle of seedless vascular plants different from the life cycle of nonvascular plants?
The adult form of each seedless vascular plant has xylem and phloem.
The gametophyte stage is lacking in the life cycle of seedless vascular plants.
The sperm of seedless vascular plants do not need to swim in water.
The zygote of each seedless vascular plant forms before the egg is fertilized.
ASAP PLEEEEEEEASE!!
Answer:
A.The adult form of each seedless vascular plant has xylem and phloem.
Explanation:
The life cycle of seedless vascular plants is different from the life cycle of nonvascular plants, as the adult form of each seedless vascular plant has xylem and phloem, which is the first option.
What are vascular plants?The life cycle of seedless vascular plants differs from the life cycle of nonvascular plants in several ways. One of the major differences is that seedless vascular plants have a distinct sporophyte stage, which is dominant over the gametophyte stage. In nonvascular plants, the gametophyte stage is dominant, and the sporophyte stage is small and dependent on the gametophyte.
Hence, the life cycle of seedless vascular plants is different from the life cycle of nonvascular plants, as the adult form of each seedless vascular plant has xylem and phloem, which is the first option.
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How are mitosis and meiosis similar
Final answer:
Mitosis and meiosis are both forms of cell division. Mitosis results in two genetically identical diploid cells, while meiosis results in four genetically distinct haploid cells.
Explanation:
Mitosis and meiosis are both processes of cell division that occur in eukaryotic cells and are preceded by one round of DNA replication. However, they differ significantly in their purpose and outcome. Mitosis involves a single nuclear division, resulting in two daughter cells that are diploid and genetically identical to the parent cell. In contrast, meiosis involves two nuclear divisions and results in four daughter cells that are haploid and genetically distinct from one another and the parent cell. While both processes involve stages such as metaphase and telophase that are comparable, the meiotic process also includes unique events such as anaphase I, leading to a halving of chromosome numbers.
Sickle cell disease causes red blood cells to appear______
Answer:
Half-mooned shaped.
Explanation:
Sickle-cell anemia is caused by a mutation in the gene encoding hemoglobin, causing red blood cells to appear half-mooned shaped.
How are forest ecosystems named?
OA) by location and by dominant tree species
OB) by location and water supply
OC) by location and shelter
OD) by location and nutrients
Answer:
by location and by dominant tree species
Choice A is correct
Explanation:
Forest ecosystems are named by location and by dominant tree species.
Forest ecosystems are defined by a common set of characteristics that make the forest ecology of a given area unique. The classifications are usually named for the dominant trees and plant species.
How was HMS beagles voyage significant to science?
The HMS Beagle carried Charles Darwin, a renown evolutionary biologist to the Galapagos Islands where he would later observe and discover the basis of evolution by natural selection. The idea of how animals evolve is significant to science in that current scientists can now develop technology and medicine to treat humans based on our evolutionary history.
Answer:
The HMS Beagle was the ship that Darwin sailed in on his voyage to the Galapagos Islands. It would be on this voyage that he would observe the beaks of finches on different islands. He would use the information that he observed to develop his theories of natural selection.
Why is the theory of evolution important?
It disproves all other theories about how life began.
It provides a topic for debate.
It is a unifying concept in biology.
It explains how life began.
I Know For Sure, it is not "It is a unifying concept in biology."
Answer:
B. it provides a topic for debate
Explanation:
its not A because its described as a theory not a universally excepted law. Its not C or D for the same reason. B isn't that good of an answer i wish it was worded differently but its the one that makes the most sense.
In sedimentary rock the oldest fossils would be expected to be found
Answer:
At the bottom of the sequence
Explanation:
According to the "principle of superposition of strata", the oldest rocks are formed at the bottom of sedimentary rock sequences.
The oldest rock layer would contain the the oldest fossil. Weathering, erosion, transportation and deposition would bring all sediments which includes rock materials and remains of living organisms to the basin where they would be lithified to form sedimentary rocks. This makes the oldest fossil to be at the bottom of the sequence. As time progresses, the fossil sequence would continue to accumulate and young upwards as the strata becomes relatively younger. Also, we know that fossils succeed one another in a definite manner.
This why relative dating of rocks can be possible.
1.A scientist wants to prevent a culture of live cells from producing a particular protein. Which of the following will the scientist MOST LIKELY modify to prevent the production of the protein? *
A.the DNA in the nucleus
B.an enzyme in the lysosomes
C.the polysaccharides in the cytoplasm
D.a phosopholipid in the cell membrane
2.Which of the following statements explains why the insertion of a nucleotide into a DNA sequence can result in a phenotypic change in the offspring? *
A.The DNA would no longer fit through the nuclear membrane to get to ribosomes for translation
B.The sequence of nitrogenous bases in the DNA would no longer code for the correct amino acids
C.Fatty acids would no longer attach to the DNA strands to transcribe the DNA
D.Antibodies would no longer recognize the DNA as belonging to the cell and would destroy the DNA
3.If the producers in a food web were removed, which of the following changes would most likely occur? *
A.The entire food web would collapse over time.
B.The food web would depend on the decomposers for energy
C.The consumers would begin making energy for the food web
D.The populations of the remaining organisms in the food web would increase
4.Prolonged periods of drought in an area cause decreases in plant population sizes. Which of the following statements describes how the decreases in plant population sizes then affect other populations in the area? *
A.Omnivore population sizes increase, and herbivore population sizes increase
B.Omnivore population sizes decrease, and carnivore population sizes increase
C.Herbivore population sizes increase, and carnivore population sizes decrease
D.Herbivore population sizes decrease, and carnivore population sizes decrease
5.The oceans have become increasingly acidic in recent years as the water absorbs more and more carbon dioxide from the atmosphere. This increased acidity interferes with the ability of corals to maintain their skeletons. In addition, an increase in water temperatures worldwide is causing coral bleaching, another condition that threatens the health of coral reefs. Based on this information, which of the following would most improve the health of coral reefs? *
A.reducing the use of fossil fuels
B.eliminating nuclear power plants
C.removing more natural gas embedded in rocks
D.replacing offshore oil drills with onshore oil drills
1. Answer: A
Explanation: For a cell to form proteins, the specific types of proteins are coded for by the genes in DNA (found in the chromosomes of the nucleus). To produce proteins, the genes are first transcribed by RNA polymerase to form messenger-RNA. The mRNA is then translated into proteins by ribosomes in the cytoplasm of the cell.
2. Answer: B
Explanation: Translation of genes into proteins is dependent on the sequence of nucleotides. They are translated in sequences of 3 nucleotides known as codons. Therefore adding a nucleotide on a piece of DNA causes what is referred to as a frame-shift mutation. The 3 sequences (of codons) is interrupted and shifted by one nucleotide. Therefore, the codons change and the amino acids translated will also change.
3. Answer: A
Expanation: Producers are significant in a food chain because they incorporate the energy of the sun into the food chain. This is why they are at the base of the food chain and have the largest biomass. They are consumed by primary consumers which are consumed by secondary consumers which are consumed by tertiary consumers and so on.
4. Answer: D
Explanation: Plants are consumed by herbivores. Therefore, a decrease in plant population due to drought was resulted to decrease in herbivore population. This is due to stiff competition by the herbivores for the scarce plant population. Carnivores consume herbivores. Due to a decrease in the herbivore population, then the carnivore population would also decrease.
5. Answer: A
Explanation: Burning of fossil fuels emits carbon dioxide gas which is a greenhouse gas. Greenhouse gas traps infrared wavelength of lights hence warming up the atmosphere, causing global warming. Reduction in use of fossil fuels will hence alleviate an increase in global temperature hence protect coral in the oceans from bleaching.
What is the approximate relative humidity in the situation shown below?
9%
21%
30%
44%
Hello Midoria, thank you for asking a question here on Brainly!
You Asked ➤ What is the approximate relative humidity in the situation shown below?
↴ OUR CHOICES ↴
A: 9%
B: 21%
C: 30%
D: 44%
------------------------------------------------------------------------------------
Answer ➤ D: 44%
Explanation: To solve this problem, we need to know the formula on receiving the wet bulb depression shown on the thermometers. While looking at this image, I can see there is a dry bulb and a wet bulb. We know that dry bulb is 29.8 degrees and that the wet bulb is 20.9 degrees. If we find the difference, we will solve for the depression.
➤ 29.8 - 20.9
➤ = 8.9 degrees Celsius
The next step is to look at the psychrometric table you have by the timer and thermometer and figure out what the approximate relative humidity is by looking for the row that matches the dry bulb and wet depression temperature to the nearest value.
➤ The nearest value to 29.8 degrees (the dry bulb) is 30 degrees.
➤ The nearest value to 8.9 degrees is 9 degrees.
Find which value intersects with the row and column of the table. We can see that the value intersect at 44 percent from the row and column of the graph. That is our final approximate relative humidity.
I hope this answer is helpful to you, but please let me know if you have any other questions regarding it.
- Qamar
Answer:
D
Explanation:
A negatively charged ion is called a
Hello There!
A negatively charged ion is called a "anions"
Answer:
Anion
Explanation:
Positive charge is cation,
Some scientists argue that global warming is related to
buming fossil fuels to produce energy
o increased use of fertilizers
loss of forested areas
a of the above
Answer:
all of the above
Explanation: