Answer:
One of the main differences between plants and fungi is that fungi have chitin as a component of their cell walls instead of cellulose.
Explanation:
Both chitin and cellulose are comprised of polysaccharide chains. ... Another contrast between plants and fungi is the presence of chlorophyll in plants and not in fung
The most common circumference to be expected in this situation is 2 cm.
Since it is given that the original population of oak trees contains acorns with the most common circumference of 2 cm, thus, the same circumference will be favored after 15 generations of stabilizing selection.
Stabilizing selection occurs when natural selection results in stabilization i.e. large number of individuals attain mean or average value for a particular trait. In this process, phenotypes of medium-sized individuals are favored through natural selection.
Since it is already mentioned that the mean circumference is 2 cm in the original population thus the same value will be expected after 15 generations of stabilizing selection.
To learn more about stabilizing selection here
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//I am not sure of any of these answers, I did some research and find this most accurate.
1) D
2) A
3) A
//Hope it helps.