AnswersBiology_B_IC_AltBiological Evidence and the Fossil Record

Biological Evidence and the Fossil Record Answers

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5

Examples that show

A
similarities
B
differences
10

Bird wings and dragonfly wings are both used for flight.

A
Homologous structure
B
Analogous structure
11

Which of the following statements is the best explanation for why the embryos look so similar, considering how different an adult fish and chicken are?

A
Fish and chickens both need gills.
B
Fish and chickens are both mammals.
C
Fish and chickens share a common ancestor.
12

Identify which examples are fossils. Select all of the boxes that apply.

A
the preserved remains of a living organism
B
a 100-year-old tortoise
C
a dinosaur footprint found in a rock layer
D
a mosquito from 65 million years ago trapped in sap
13

Examples that show

A
convergent evolution
B
descent from a common ancestor
14

The oldest forms of life were much more simple than the newest forms of life.

A
Increasing complexity
B
Transitional forms
C
Geographic distribution
15

All of these examples show evidence for evolution because they show

A
descent from a common ancestor
B
original traits
17

All of the following statements are true. Decide which of the examples of molecular biology give evidence for evolution. Check all of the boxes that apply.

A
HOX genes are very similar in all animals.
B
Bug wings and bat wings are both used for flying.
C
Many species share much the same DNA.
D
Plant and animal cells have almost all of the same structures.

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