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timurjin [86]
4 years ago
8

HELP!!! PLEASE!!! THANK YOU

Biology
1 answer:
Bas_tet [7]4 years ago
8 0
Causes of speciation<span>. In the fruit fly example, some fruit fly larvae were washed up on an island, and </span>speciation<span> started because populations were prevented from interbreeding by geographic isolation. ... However, </span>speciation<span> might also happen in a population with no specific extrinsic barrier to gene flow.</span>
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Answer:

b. the positive feedback's effector responses are in the same direction as the initiating stimulus rather than opposite of it

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Both positive and negative feedback have the same components:

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Negative feedback loops act to oppose the stimulus.

Unlike negative feedback loops, positive feedback loops amplify the starting signal.

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