Which of the following statements about symbiotic relationships are true? (Check all that apply.)A) Plant-pollinator interaction is classified as a good example of mutualism.B) Both mutualisms and commensalisms result from the process of coevolution.C) It is sometimes difficult to determine if a specific relationship is mutualism, commensalism, or parasitism.D) Parasites can sometimes influence the behavior of their hosts to facilitate completion of their life cycles.E) Mutualists sometimes become parasites.
What will be an ideal response?
A, C, D, E
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The neurotransmitter, __________, is used by motor neurons to communicate with muscle cells.
A. acetylcholine B. GABA C. glutamine D. fatty acids E. serotonin
In working with an infertile couple, through fertility testing, it is confirmed the wife releases polar bodies each month, wrapped in follicle cells. How would you explain their infertility?
A. The wife's ovaries are not making eggs, just polar bodies. B. The wife lacks ovaries. C. The wife has excess estrogen. D. The wife's ovaries are producing testosterone. E. None of the answer choices is correct.
The transporter indicated by the letter “A” in the
above figure represents a. an active Br transporter. b. a sodium-potassium transporter. c. a passive potassium transporter. d. a calcium-phosphorus transporter. e. none of these.
Joint capsules are typically reinforced by ligaments
____________________ Indicate whether the statement is true or false.