Chapter Questions
Based on molecular similarities, rank the following organisms from most closely related to a human to the least closely related to a human:
Developmental similarities exist in all vertebrate embryos, regardless of what their adult form looks like. What three structures are found in all vertebrate embryos?
Choose the appropriate term from the following pairs: A butterfly wing and a bird wing are examples of homologous/analogous structures because they do/do not arise from a common ancestor.
The leaves of a cactus have been modified into spines, and the Venus flytrap's "mouth" is also a modified leaf. The spines and the "mouth" are examples of structures.
Choose the correct term from the following pair: The lower/higher the sediment layer, the older the fossilized species.
A previous question listed the percent similarities between different organisms and a human:
What is the relationship between homologous and vestigial structures?
What is the driving force behind the development of analogous body structures?
Fill in the blank and choose the correct term from the pair in bold: Hutton's theory of stated that geological structures were formed through fast/slow changes over long periods of time.