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Natural Selection Unit Test
Science 8 A / Natural Selection there are 23 question
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#1. noun-verb agreement
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its 14 questions
Which choice correctly identifies a positive correlation regarding the increase in black peppered moth populations in England during the late 1800s?(1 point)
Responses
the correlation between black moth populations and predation of black moths
the correlation between black moth populations and predation of black moths,
the correlation between air pollution and white moth predation
the correlation between air pollution and white moth predation
the correlation between air pollution and white moth populations
the correlation between air pollution and white moth populations
the correlation between air pollution and black moth predation
The correct choice that identifies a positive correlation regarding the increase in black peppered moth populations in England during the late 1800s is:
"the correlation between air pollution and black moth populations"
Which statement is accurate about natural selection?(1 point)
Responses
It is a biological process that leads a population to have a widespread expression of an advantageous trait.
It is a biological process that leads a population to have a widespread expression of an advantageous trait.
It is a biological process that prevents species from adapting to significant changes in their environments.
It is a biological process that prevents species from adapting to significant changes in their environments.
It is a biological process that allows a population to have a competitive advantage in many environments.
It is a biological process that allows a population to have a competitive advantage in many environments.
It is a biological process that causes certain traits to be expressed less with each subsequent generation.
The accurate statement about natural selection is:
"It is a biological process that leads a population to have a widespread expression of an advantageous trait."
I got you guys! Please like this so other kids can see it easier!
Question 1:
Advantageous = 1
Disadvantageous = 2
Question 2:
Fitness = The organism's suitability to survive its environment
Gene pool = Total collection of genes in a population
Genetic variation = Differences in genes in population
Selective Pressures = Factors that limit the number of individuals the environment can support
Natural Selection = The process by which variations that give an advantage become more common in the population
Question 3:
A thick coat of fur on polar bears living in the artic tundra
Question 4:
Struggle to survive and decrease in population size = 1
Not struggle to survive and increase in population size = 2
Question 5:
Yellow looking frog = Advantageous
The other 2 frogs = Disadvantageous
Question 6:
Predators could more easily see the lighter-colored snails
Snails with lighter coloration moved to an ecosystem where they were more likely to survive
Snails with lighter coloration started having fewer offspring to pass the trait along
Question 7:
Artificial Selection
Question 8:
True
Question 9:
(So, you gotta type on this one, DO NOT TYPE EXACTLY WHAT I PUT! DO YOUR OWN! just like base it off mine!)
Well, it grew thick fur to withstand the freezing temperatures of the icy artic tundra.
Its fur helps them by allowing them to go on the surface to get food to survive.
Does anyone have the Natural selection unit test answers its 18 questions??
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Natural Selection Unit Test
5 of 145 of 14 Items
Question
How does an individual with a competitive advantage lead to the evolution of an entire species?(1 point)
Responses
Traits that are advantageous help certain individuals reproduce at higher rates, so those traits are more common within the population.
Traits that are advantageous help certain individuals reproduce at higher rates, so those traits are more common within the population.
Those who have traits that help them survive are able to reproduce, and their offspring have those traits, leading to a change in the species over time.
Those who have traits that help them survive are able to reproduce, and their offspring have those traits, leading to a change in the species over time.
Individuals that survive due to their competitive advantage are able to expand their range, similar to how the finches radiated out from one common ancestor on the mainland.
Individuals that survive due to their competitive advantage are able to expand their range, similar to how the finches radiated out from one common ancestor on the mainland.
Some individuals are better at competing for resources, and that allows them to survive droughts or other major ecological events, leading to the extinction of certain species and the survival of others.