WorksheetsEvolution Test Review 2
Total questions: 10
Worksheet time: 8mins
Define: natural selection
anatomically similar structure inherited from a common ancestor
an organism's ability to survive and reproduce in a particular environment.
The process by which organisms better adapted to their environment tend to survive and produce more offspring
Cumulative changes in groups of organisms over time; change over time
Define: homologous structure
structure that has the same function but different construction and was not inherited from a common ancestor.
anatomically similar structure inherited from a common ancestor
Structures that are no longer used by the organism but were once useful to the ancestor organism
structure that has the same function but different construction and was not inherited from a common ancestor.
On a hike of the Grand Canyon, you walk up hill, where would you find older, simpler fossils?
Near the bottom layers
Near the top layers
None of the above
Define: evolution
Cumulative changes in groups of organisms over time; change over time
an organism's ability to survive and reproduce in a particular environment.
An organism's ability to blend in to it’s environment
Selective breeding of organisms by humans for certain desired traits
What is the term for selective breeding of organisms by humans for certain desired traits
(a)
Which evolves: populations or organisms?
populations
organisms
The closer the bone structures resemble each other the closer the organisms are related to each other.
True
False
Explain how these 6 different early stage embryos (above) can be used as evidence of a common ancestor between each of these six organisms:
They will all develop into the same organism
They show homologous structures in the earliest stages of development
We cannot use embryos as evidence of a common ancestor
The show vestigial structures in the earliest stages of development
Explain how biological chemicals can be used as evidence of a common ancestor between organisms:
Chemical are rarely used to show evidence of common ancestry
The more chemical sequences organisms have in common, the closer the organisms are related to each other
When these chemicals react more often with each other, the more closely related the organisms are to each other.
The fewer chemical sequences organisms have in common, the closer the organisms are related to each other
What is the name of the structures that are no longer used by a organism but were once useful to the ancestor organism (ex: whale pelvic bone, the appendix in humans)
(a)
