Which statement about biomass is FALSE?
a. Biomass reduction from one trophic level to the next is approximately 50%.
b. Biomass reduction from one trophic level to the next varies widely in nature.
c. Biomass reduction can be measured as dry weight.
d. Biomass may be measured as live weight.
e. Biomass in an ecosystem can be illustrated using a pyramidal-shaped graph.
a
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The ion flow in part 1 of Figure 41-2:
a. represents the equilibrium potential.
b. represents the resting state.
c. will increase the rate of repolarization.
d. will reestablish the electronegative resting potential.
e. represents the initial response of a neuron to an action potential.
Refer to Figure 40-4. In which part of the cell are calcium ions stored?
a. 2 b. 3 c. 4 d. 5 e. 6 What will be an ideal response?
Ribosomes are a type of (apoenzyme/enzyme/ribozyme).
Fill in the blank(s) with the appropriate word(s).
Choose the correct order of the three main types of cytoskeletal elements in increasing order of size.
A. Microtubules, flagella, cilia B. Actin filaments, intermediate filaments, microtubules C. Microtubules, cilia, flagella D. Actin filaments, intermediate filaments, flagella E. Microtubules, intermediate filaments, actin filaments