Moss A produces gametes in May, and moss B produces gametes in June. This is an example of a/an ________ isolating mechanism
A) post-mating B) temporal C) behavioral D) geographic
Answer: B
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All of the following are appropriate strategies for overcoming drug resistance in bacteria except
A. decreasing the use of antibiotics in agriculture. B. prudent use of antibiotics when treating viral infections. C. heightened infection control in health care facilities. D. patient compliance with dosage instructions when taking antibiotics.
Bungarotoxin is a lipid found in the venom of snakes that causes muscle paralysis
Indicate whether the statement is true or false.
What mechanism is not used to prevent self-pollination in angiosperms?
a. separate male and female individuals b. pollen is shed before the stigma of that flower is receptive to pollen c. pollen is shed after the stigma of that flower is receptive to pollen d. self-incompatibility genes enable a plant to recognize its own pollen e. self-incompatibility genes stimulate growth of the pollen tube
During which two times can the recipient accurately be described as "recombinant" due to the sequence of events portrayed in the figure?
A) during Times C and D B) during Times A and C C) during Times A and B D) during Times B and D