1. Which would make the best pioneer species during primary succession?
1Points
A
bacteria and lichens
B
grasses and birch trees
C
lichens and grasses
D
bacteria, lichens, and grass
2. True or False: A population pyramid with a wide base has a population that is decreasing.
1Points
A
True
B
False
3. Which of the following are nonrenewable resources?
Select all that apply.
1Points
A
fossil fuels
B
Sunlight
C
nuclear power
D
wind and sunlight
4. Which of the following are renewable resources?
1Points
A
fossil fuels
B
metals and other minerals
C
plastic
D
wind and sunlight
5. In the logistic growth model, as a population approaches the carrying capacity, what happens to its growth rate?
1Points
A
becomes exponential
B
doubles
C
increases
D
slows to zero
