1. Which statement is true? a)Epigenetic changes cannot be explained by DNA structure, but genetic changes can.
b)Genetic and epigenetic changes can be explained by DNA structure.
c)Epigenetic changes can be explained by DNA structure, but genetic changes cannot.
d)Genetic and epigenetic changes cannot be explained by DNA structure.
2. Which animal trait was Darwin’s theory of natural selection based on?
a)swimming ability of Galápagos iguanas
b)beak morphology of Galápagos finches
c)predatory behavior of foxes
d)coloration of peppered moths
3. What is most likely to happen if predators are introduced to an ecosystem with no known predators?
a)A decrease in species abundance.
b)A decrease in species evolution.
c)An increase in species differentiation.
d)An increase in species migration.
4. Which representation of data visualizes potential relationships between variables?
a)a graph
b)a list
c)a chart
d)a table
5. How did Drs. Peter and Mary Grant verify Darwin’s theory of natural selection?
a)by finding new species that adapted to a different environment
b)by assessing changes in another animal trait
c)by making observations over a long period of time
d)by studying a different group of organisms