I think it is either y or z. It has been a little bit since I have done this unit though...
An adaptation is a trait that "evolved" for a particular condition that allows the animal to survive. Something is adaptive if it is a useful trait but not necessarily one that occurred in response to a particular selection pressure. Basically a trait is an adaptation if it is the product of selection, and adaptive if it is beneficial in the present time.
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1) are fluffy
4) form 1-1.5 miles above Earth
5) can extend up to 10 miles into the sky.
The Effects of Dry Soil. Low soil moisture is often the reason this happens but other factors play a role. When temperatures are high and it is warm or hot, the plant loses more water through transpiration causing the plant to wilt if the water needs are higher than what is available.
Hope this helps a little, if you plan on copying just put it in your own words first.
Answer:
A fixed allele is an allele that is the only variant that exists for that gene in all the population
Explanation:
