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Questions (2)
Why are the gene pools of small populations reduced compared to those of larger populations?
a inbreeding b lack of advantageous
14 answers
159 views
Question 8 (1 point)
How did the Industrial Revolution impact the population of peppered moths in Britain? a The light-colored
37 answers
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Answers (60)
A box contains 4 yellow tiles, 6 green tiles, and 10 purple tiles. Without looking, you draw out a tile and then draw out a second tile without returning the first tile.
w bot
he righ
thanks for helping me check my answers
Consider the following scenario: In an aquatic bird population, some birds have long legs. Other birds have short legs. The food supply is minimal. The birds with long legs are able to wade farther into the water where they can find fish. Over time, the
In an ecosystem where most flowers are long and bell-shaped, there are two varieties of hummingbird: birds with short beaks and birds with long beaks. What is the most likely hummingbird population composition? a only long-beaked hummingbirds b more
What is the name given to an observable characteristic of an organism? a phenotype b mutation c genome d genotype
Consider the following scenario: You are a scientist observing rodents on the Galapagos Islands. You notice that the introduction of a new bird of prey has limited the number of rodents. What term best describes the factor that is limiting the number of
Over time, the variation that gives an advantage a can limit the number of individual organisms. b becomes less common in the population. c can limit the number of selective pressures. d becomes more common in the population
What statement accurately describes the relationship between variations and fitness? a Variations always increase fitness. b Variations can lead to either an increase or decrease in fitness. c Fitness always increases variations d Fitness can lead to
Facts or data are types of a evidence. b reasoning. c models d explanations.
Which statement is accurate about variations? a In all cases, variations become more common in a population. b Organisms with variations are less likely to pass these variations to their offspring. c Organisms with variations that give an advantage are
Why are the gene pools of small populations reduced compared to those of larger populations? a inbreeding b lack of advantageous traits c lack of suitable mates d bottleneck events
Which term means making sense of information? a evidence b reasoning c investigation d explanation
In an ecosystem, there are two color varieties within a species of toads: brown and green. Over 50 years, the proportion of the population that is green increases from 20% to 50%. Which statement is the most likely to explain this change? a A disease
Consider the following scenario: In a muddy lake environment, some fish have brown scales. Most fish, however, have silver scales. Predators have a harder time seeing fish with brown scales. Which term best describes the brown scales? a new mutation b
Which variety of mouse is more likely to survive in a dry desert? a a mouse that needs more water b a mouse that needs less water c a mouse that has a shorter tail d a mouse that has a longer tail
Consider the following scenario: You notice that no two cats at the pet store are exactly alike. Some have spotted fur. Some have striped fur. Some have fur of one solid color. What term is used to describe your observation? a variation b fitness c natural
Consider the following scenario: A drought hits the habitat of a semi-aquatic bird population. All ponds dry up, and fish populations decline. There are two groups of birds in the population that differ in leg length and diet. Long-legged birds eat fish,
How did the Industrial Revolution impact the population of peppered moths in Britain? a The light-colored moths became more common. b The Industrial Revolution caused the proportions of each color morph in the population to become unequal c The
Which explanation is accurate about the survival and reproduction of a population? a If there are a limited variety of traits in a population, most traits will be a good fit with the environment. b If there are a limited variety of traits in a population,
Question 8 (1 point) How did the Industrial Revolution impact the population of peppered moths in Britain? a The light-colored moths became more common. b The Industrial Revolution caused the proportions of each color morph in the population to become
Question 8 (1 point) How did the Industrial Revolution impact the population of peppered moths in Britain? a The light-colored moths became more common. b The Industrial Revolution caused the proportions of each color morph in the population to become
How did the Industrial Revolution impact the population of peppered moths in Britain? a The light-colored moths became more common. b The Industrial Revolution caused the proportions of each color morph in the population to become unequal c The
Question 6 (1 point) Consider the following scenario: You notice that no two cats at the pet store are exactly alike. Some have spotted fur. Some have striped fur. Some have fur of one solid color. What term is used to describe your observation? a
Why are the gene pools of small populations reduced compared to those of larger populations? a inbreeding b lack of advantageous traits c lack of suitable mates d bottleneck events Question 2 (1 point) Which term means making sense of information? a
Why are the gene pools of small populations reduced compared to those of larger populations? a inbreeding b lack of advantageous traits c lack of suitable mates d bottleneck events
Question 1 (1 point) Why are the gene pools of small populations reduced compared to those of larger populations? a inbreeding b lack of advantageous traits c lack of suitable mates d bottleneck events
Question 1 (1 point) Why are the gene pools of small populations reduced compared to those of larger populations? a inbreeding b lack of advantageous traits c lack of suitable mates d bottleneck events Question 2 (1 point) Which term means making sense of
mr bot
can you write an essay about the most important advice you have ever received?
Write an essay in response to one of the following questions: Do you agree or disagree with the way Dante treats the narrator in the story? What is the most important advice you have ever received?
Write an essay in response to one of the following questions: Do you agree or disagree with the way Dante treats the narrator in the story? What is the most important advice you have ever received? A strong essay uses in-text evidence and considers
Question 1 (1 point) Which evidence supports the theory that fish and mammals evolved from the same ancestor? a Their embryos share features in the early stages of development. b They both produce egg and sperm cells that must join in fertilization. c
:D
thanks
ty you got me an 85
The Kudzu vine was brought to the United States from Japan. Which of the following additional characteristics of the Kudzu vine determined that it was an invasive species? a it has no economic benefit b it was believed to be a "miracle plant" c it protects
Which is most likely a keystone species? a wolves in Yellowstone National Park, which eat elk, who graze on willows, on which beavers depend to build their dams b feral cats, which hunt a wide variety of animals, including birds, lizards, rodents, and
How do traditional food production practices contribute to a reduction in biodiversity? a Air, land, and water are used to produce food, so food that is thrown away is a waste of those original resources. b Livestock raised for meat are not as diverse as
Environmental changes like increased temperature can stress an ecosystem. Why is this an issue with regard to invasive species? a Ecosystems are destroyed by environmental changes, and then invasive species establish a new ecosystem, so the original
Which option would be the best way to reuse food waste? a compost scraps for fertilizer b feed scraps to livestock c incinerate scraps to make space d convert scraps to biofuel
Aside from killing native species, what other negative issue might an invasive species present? a They might introduce other organisms, like viruses and bacteria. b They might avoid interacting with other organisms. c They might increase the diversity of
Direct ecosystem services include benefits such as a photosynthesis. b transportation. c soil decomposition. d recreational parks.
What happens after coral is bleached? a The coral produces peroxides. b The coral is susceptible to starvation. c The coral releases algae onto a sand dune. d The coral dies immediately.
Why are invasive species such a huge threat to ecosystems? a Invasive species can do intense damage, so much so that ecosystems may not be able to recover. b Invasive species provide no added benefit or diversity to the ecosystem. c Invasive species are
Imagine that an ecosystem contains rabbits, foxes, wolves, and deer. The following predator-prey relationships exist: Rabbits are eaten by foxes and wolves Deer are eaten by wolves Foxes are eaten by wolves Select the animal whose absence would have the
Marine biologist Dr. James Estes researched sea otters and their habitats in the Aleutian Islands of the North Pacific Ocean. Sea otters feed on animals such as crabs and urchins. Islands with sea otters contained a lot of kelp, a seaweed that is an
Biodiversity is measured by a examining the usefulness of a specific trait in a species that interacts within an ecosystem. b counting the total number of one species population and how they interact within an ecosystem. c counting the number and variation
Which statement is true? a Insects can delay the decomposition process. b Composting speeds up the decomposition of organic material. c Organic material will not decompose without the help of composting. d Decomposition only involves microorganisms like
