The process of relaying a growth-stimulatory or growth-inhibitory signal in response to an extracellular factor binding at the cell surface is called intercellular signaling
Indicate whether the statement is true or false
FALSE
Explanation: This process is called signal transduction.
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Describe the difference between an osmoregulator and an osmoconformer
What will be an ideal response?
In the neritic zone, a 10-milliliter sample of surface water can contain ____ of multicellular planktonic organisms
a. hundreds b. thousands c. millions d. billions e. trillions
Thymine dimers
A. form when DNA is exposed to carcinogens such as tobacco smoke. B. result in abnormal protein structure which causes red blood cells to sickle. C. are rarely removed by DNA repair enzymes. D. form when DNA is exposed to UV radiation.
Which of the following statements about fermentation is NOT correct?
A. Fermentation is a less efficient energy producer than aerobic respiration. B. Fermentation utilizes the electrons generated in the glycolytic breakdown of glucose. C. Fermentation is an anaerobic process. D. In fermentation, the molecules that are used as final electron acceptors differ from those used when glycolysis occurs in the presence of oxygen. E. All are correct