Evolution

Which of the following is a term for a group of similar organisms that can interbreed and produce fertile offspring?

• individual
• population
• species
• fossil

what did Charles Darwin observe in finch populations of the Galapagos Islands off the coast of South America?

• different species on different islands
• all species on one of the islands
• identical species on all the islands
• the same species as North America

What are homologous structures?

• similar in function but different in structure
• remnants of organs that that functioned in earlier ancestors
• episodes of speciation
• similar in structure but different in function

True or False: Natural Selection acts on existing variation

• False
• True

Tags

NGSS.HS-LS4-2

NGSS.HS-LS4-4

How would you describe this evolution? butterly vs. bat wing

• Homologous structure
• Analogous structure
• Structural adaption
• Functional adaption

Which of the following explains how natural selection causes a trait to become predominant in a population?

• Individuals with traits that are favorable to the environment reproduce more.
• Traits of an individual change in order to adapt to changes in enviornment.
• organisms select which traits they wish to inherit
• all of these answers

Tags

NGSS.HS-LS4-4

Structures that have different mature forms but develop from the same embryonic tissue are called 

• analagous
• adaptations
• homologous
• fossils

Intermediate fossil forms are important evidences of evolution because they show

• how organisms change over time
• how animals behaved in their environments
• how the embryos of organisms develop
• molecular homologies

Whales are aquatic mammals that contain a pelvis bone.  Even though it does not aid in its movement, the function must have been used by a common ancestor of the whale.  Thus, the pelvis is referred to as a(n)

• vestigial structure
• analogous structure
• homologous structure

Process in which certain organisms are chosen by humans based on their traits to produce offspring with the desirable traits

• Selection
• Artificial selection
• Natural selection
• Evolution