Explain how a diving marine mammal increases its supply of stored O2, in spite of the fact that its
lungs are collapsed at depths below 25 meters.
What will be an ideal response?
Marine mammals increase their stores of O2 by: (1) increasing size-relative blood volume, (2)
increasing erythrocyte concentration, and (3) increasing their concentration of myoglobin in their
muscle.
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In the Hershey-Chase experiments, the protein coat of the bacteriophage was labeled with the 32P radioisotope
Indicate whether the statement is true or false
What is the result of demyelination of axons?
a. reduction of the speed of action potential conduction b. increase in the threshold of excitation of the neuron c. increase of the speed of action potential conduction d. decrease in the threshold of excitation of the neuron
The main reason that cellular aerobic respiration needs to occur step by step instead of a single, big reaction is
A. cells don't have enough mitochondria to catalyze the larger, single reaction. B. too much energy would be released as heat and destroy the cell. C. cells don't store enough oxygen to absorb all the energy in one release. D. cells produce the enzymes needed for cellular respiration very slowly. E. glucose breaks down slowly, carbon by carbon, inside a cell.
The ________ is the branch of the peripheral nervous system that is made up of nerves that carry information to and from the CNS, which results in sensations and voluntary movement
Fill in the blank(s) with correct word