Fishes that reproduce in fresh water and migrate out to sea as adults are considered:
a. catadromous.
b. anadromous.
c. polyandrous.
d. polygynous.
e. demersal.
B
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Why is it a good strategy for a microbe to adhere to a receptor that plays a critical function for a host cell?
A. It ISN'T a good strategy-host cells could shift to a backup receptor and shut down production of the main receptor, preventing infection. B. If it's a receptor the cell MUST use, it doesn't have a backup system in place to switch to-so, even though it makes it susceptible to infection, it HAS to put that target out there. This benefits the microbe. C. Microbes need to evade detection and elimination by the immune system-if they adhere to a receptor that plays a critical function, they are less likely to trigger destructive immune responses. This would be similar to using a hostage as a shield in a police-standoff situation. D. It ISN'T a good strategy-by binding to receptors, microbes will be phagocytosed by cells and destroyed within them.
Four of the five terms listed below are examples of
defense coloration. Select the exception. a. mimicry b. warning coloration c. camouflage d. albinism e. there is no exception in this list.
When hyperplasia develops, signaling a loss of control of cell division, it always results in cancer
Indicate whether the statement is true or false
Sugars are formed in the chloroplasts ____.
A. on the outer membrane B. on the inner membrane C. in the thylakoid compartment D. in the stroma E. within the thylakoid membrane