Which statement is true?(1 point)

Question

Responses

Genetic and epigenetic changes can be explained by DNA sequence.
Genetic and epigenetic changes can be explained by DNA sequence.

Genetic and epigenetic changes cannot be explained by DNA sequence.
Genetic and epigenetic changes cannot be explained by DNA sequence.

Epigenetic changes cannot be explained by DNA sequence, but genetic changes can.
Epigenetic changes cannot be explained by DNA sequence, but genetic changes can.

Epigenetic changes can be explained by DNA sequence, but genetic changes cannot.

Which animal trait was Darwin’s theory of natural selection based on?(1 point)
Responses

swimming ability of Galápagos iguanas
swimming ability of Galápagos iguanas

beak morphology of Galápagos finches
beak morphology of Galápagos finches

coloration of peppered moths
coloration of peppered moths

predatory behavior of foxes

What is most likely to happen if predators are introduced to an ecosystem with no known predators?(1 point)
Responses

An increase in species differentiation.
An increase in species differentiation.

A decrease in species evolution.
A decrease in species evolution.

An increase in species migration.
An increase in species migration.

A decrease in species abundance.

Which representation of data visualizes potential relationships between variables?(1 point)
Responses

a graph
a graph

a chart
a chart

a list
a list

a table

Question
How did Drs. Peter and Mary Grant verify Darwin’s theory of natural selection?(1 point)
Responses

by studying a different group of organisms
by studying a different group of organisms

by finding new species that adapted to a different environment
by finding new species that adapted to a different environment

by assessing changes in another animal trait
by assessing changes in another animal trait

by making observations over a long period of time

Answer 1

Here are the answers to your questions:

1. Which statement is true?

   • Genetic and epigenetic changes can be explained by DNA sequence. (This statement is accurate as genetic changes are directly related to DNA sequence, while some aspects of epigenetic changes can also be influenced by the underlying DNA sequence.)

2. Which animal trait was Darwin’s theory of natural selection based on?

   • beak morphology of Galápagos finches. (Darwin famously studied the beak shapes of finches on the Galápagos Islands to support his theory of natural selection.)

3. What is most likely to happen if predators are introduced to an ecosystem with no known predators?

   • A decrease in species abundance. (The introduction of predators can lead to a decline in prey species, which often results in decreased species abundance.)

4. Which representation of data visualizes potential relationships between variables?

   • a graph. (Graphs are commonly used to visualize relationships between variables in data analysis.)

5. How did Drs. Peter and Mary Grant verify Darwin’s theory of natural selection?

   • by making observations over a long period of time. (The Grants conducted long-term field studies on Darwin's finches to observe evolutionary changes in response to environmental factors.)

Feel free to ask if you have more questions or need further clarification!