Excess nutrients in the aquatic environment can cause an initial population surge of primary producers, but eventually results in a collapse of the ecosystem. Which of the following answer choices is not a direct reflection of this statement?
A. Habitats have a particular carrying
capacity.
B. All trophic levels can be interdependent.
C. Communities are shaped by the physical
environment.
D. Animals interact with their physical
environment.
D
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Homologous chromosomes have the same arrangement of genes along their length
A. true B. false
The myosin power stroke in muscle contraction is triggered when _____ is released
Fill in the blank(s) with the appropriate word(s).
Conformational changes within a protein molecule are NOT seen in the following function:
A) muscular contraction B) binding of calcium to myosin C) opening or closing of a membrane channel D) interactions between GroEL and GroED E) binding of a substrate to an enzyme
An endotherm is more likely than an ectotherm to have a narrow thermal niche.
a. true b. false