Define metabolism
What will be an ideal response?
Metabolism is the total of all of the chemical reactions in a cell. These reactions can be catabolic or
anabolic and are used to synthesize new molecules or extract energy from molecules to power cellular
work.
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Increased rate of photosynthesis is the most likely explanation as to why atmospheric CO2 levels appear lowest during glacial periods of Earth's history
A. true B. false
The body fluid of sharks has a much lower concentration of sodium chloride than that of the surrounding seawater, and yet they are able to remain in osmotic equilibrium with the external environment. How can this be the case?
A. Sharks store enough urea in their bloodstream to match the total solute concentration of the surrounding seawater. B. Sharks are osmoregulators. C. Sharks maintain high levels of sodium chloride in their skin. D. Sharks drink large volumes of seawater to compensate for the low salt concentration of their body fluids. E. None of the answer options is correct.
ADH is also called vasopressin. What functions of vasopressin make this an appropriate name for this hormone?
What will be an ideal response?
Four of the five answers listed below are fat soluble vitamins. Select the exception
a. vitamin A b. vitamin C c. vitamin D d. vitamin E e. vitamin K