Populations and the Environment Answers

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Insects:

A
biotic
B
abiotic
3

Rotting log:

A
biotic
B
abiotic
4

Bacteria:

A
biotic
B
abiotic
5

Water:

A
biotic
B
abiotic
6

Rocks:

A
biotic
B
abiotic
7

Which of the following did you include in your answer? Check all that apply.

A
savanna
B
bush
C
scrub
D
woodland
E
acacia
8

Describe the niche of the giraffe.

Answer:

mutualistic relationship

9

Which of the following did you include in your answer? Check all that apply.

A
graze
B
foliage
C
maintain
D
open
E
woodland
F
oxpecker
G
parasite
H
mutualistic relationship
10

Describe animal interactions that affect populations in the tundra ecosystem.

Answer:

Animals have adapted to the harsh weather conditions and long winters of the tundra. Animals migrate to eat insects that live there year round. Many animals in the tundra hibernate during the long, cold winter months. Animals are most active in the short summer as the snow melts and shallow wetlands form.

11

Which of the following did you include in your answer? Check all that apply.

A
Animals have adapted to the harsh weather conditions and long winters of the tundra.
B
Animals migrate to eat insects that live there year round.
C
Many animals in the tundra hibernate during the long, cold winter months.
D
Animals are most active in the short summer as the snow melts and shallow wetlands form.

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