A plant with a very small tubular type of flower that cannot be pollinated by a large honeybee is exhibiting which

prezygotic isolating mechanism?



a. behavioral

b. ecological
c. gametic
d. mechanical
e. temporal


ANSWER: d

Biology & Microbiology

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Transcription starts at a ____ and ends at a ____

Two parts for this statement.

Biology & Microbiology

The process whereby repeated, short stimuli provided to a hippocampal neuron have the effect of strengthening the synapse it makes with other neurons is specifically referred to as

A. long-term potentiation. B. short-term potentiation. C. neurotransmission. D. synaptic reuptake. E. None of these choices are correct.

Biology & Microbiology

Describe the evidence for the existence of a flowering promoter and also for the existence of a

flowering inhibitor. What will be an ideal response?

Biology & Microbiology

_____ are commonly associated with Hashimoto's.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology