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Eva8 [605]
3 years ago
12

A genetic change that caused a certain Hox gene to be expressed along the tip of a vertebrate limb bud instead of farther back h

elped make possible the evolution of the tetrapod limb. This type of change is illustrative of _____.
Biology
1 answer:
tiny-mole [99]3 years ago
5 0
(A) a change in a developmental gene or in its regulation that altered that spatial organization
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An insect population lives along the edge of a north-south mountain range. The populations from the east and west slope eventual
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c

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how would you distinguish between an independant variable,dependant variable,constants,and a control group?
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Independent Variable is what you change in an experiment. A Dependent Variable is what you’re trying to find out. Constants are what you keep that same. Control Group is the standards to which comparisons are made.
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3 years ago
In 1998, scientists discovered that the expansion of the universe has been accelerating.
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Answer:

Option A (dark energy) is the right answer.

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Some other three choices have no relation to the particular situation. Thus option A would be the right solution.

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Jessie was conditioned to blink using an air puff and a tone. the experimenter then presented only the tone until the blink resp
kondor19780726 [428]

This is referred to as: spontaneous recovery

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3 years ago
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