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Biology 2nd Quarter Review 11 - 20
Test Description: Biology, 2nd Quarter, questions
Instructions: Answer all questions to get your test result.
1) Why do some animals survive and others become extinct
A
the most popular animals always win
B
small organisms will have short lives
C
they are better adapted animals will survive
2) To store hereditary information is the main function of:
A
DNA
B
adaptations
C
molecules
3) Which of the following enables an organism to survive in an environment?
A
differences
B
attitudes
C
adaptations
4) A human cell has 46 chromosomes. After mitosis, the two new cells each have how many chromosomes?
A
46
B
13
C
23
5) Animals with favorable traits/variations survive and reproduce at higher rates than those without these traits/variations. This is because of their:
A
Meisosis
B
Evolution
C
Adaptations
6) If a karyotype chart shows an X and Y chromosome at the end of the chart, this indicates the organism's:
A
hair color
B
height
C
sex
7) In the Galapagos Islands, Darwin noticed 14 different species of finches from a single ancestor species. Why were they so different?
A
different food sources
B
different climate
C
they liked to show off
8) Heterozygous pairs are represented by:
A
CC
B
Cc
C
cc
9) Homozygous pairs are represented by:
A
both are correct
B
cc
C
CC
10) Organisms that are better adapted to their environment will have a greater chance for survival explains which concept?
A
Evolution
B
Survival of the Fittest
C
Meiosis
*select an answer for all questions
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