In the logistic growth model, as population size increases, birth rates
A) remain constant and death rates increase.
B) decline but death rates remain steady.
C) and death rates increase.
D) and death rates remain steady.
E) rates decline and/or death rates increase
Answer: E) rates decline and/or death rates increase
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Which of the following is not a female component of a flower?
a. anther b. carpel c. stigma d. style
You are a resource manager of a large eutrophic lake. After stopping the source of nutrients from entering the lake, what further steps could you do to improve the water quality?
a. introduce phytoplankton-consuming fish. b. introduce freshwater sponges into the lake. c. introduce aquatic plants into the habitat. d. introduce carnivorous fish into the lake.
When sodium ions flow into the axon
cytoplasm,
a. the membrane potential reverses. b. the cytoplasm becomes more positively charged. c. the interstitial fluid becomes more negatively charged. d. an action potential is generated. e. all of these things happen
A mutant plant that does not exhibit phototropism is found. This plant has a mutation involving what
hormone? What will be an ideal response?