Term

how do the many different species of moths and butterflies and their caterpillars offer examples of unity, diversity, and adaptations?

Definition

unity - juvenile feeding stage (caterpillar)...

Term

what does descent with modification mean?

Definition

family tree, species accumulate differences from their ancestors as they adapt to different environments over time

Term

what is a fossil

Definition

mineralized skeletal material, sedimentary rock (strata), groundwork for Darwin's ideas