Evolution and Diversity

Front

A 7th grade class is conducting an investigation on the number of butterfly species in the school yard as part of their unit on inherited traits and adaptations. Which statement is NOT a possible inference about the data the students collected? Options: The number of butterfly species present in the school yard is decreasing over time. The data is incorrect because a teacher once saw butterflies in February. These butterfly species hibernate during the colder months in this climate. The number of butterfly species detected increases as temperature increases.

Back

The data is incorrect because a teacher once saw butterflies in February.

Front

What is a limitation that all models have?

Back

Models are never exactly like the real thing.

Front

What can you infer about these two organisms from their homologous structures?

Back

They evolved, are related, and share a common ancestor.

Front

Which of the following does the fossil record support concerning the evolution of some forms of life? simple body plan -> complex body plan

Back

The fossil record supports the evolution from a simple body plan to a complex body plan.

Front

This graph shows the length in a population of fish. Which of the following conclusions is supported by the graph?

Back

There is a variation in the characteristics of the members of the population.

Front

Natural selection acts on which genetic trait in the moth species?

Back

color form

Front

Based on the graph, how would you expect the populations of the speckled lizards predators to change throughout the years?

Back

stay the same, because the number of lizards was about the same

Front

What is the best explanation for the observations of more light speckled lizards?

Back

Now we have less soot deposits and the light speckled lizards are better camouflaged.

Front

The graph shows data about the number of organisms that have gone extinct over time. Look closely at the graph. Which conclusion is supported by the graph?

Back

The rate of extinction increased rapidly during the 1900s.

Front

How do fossils support evolution?

Back

The fossil record provides evidence that organisms have changed over time.