A scientist speculates that if the second population leaves the area, the giraffe population could exhibit sh exhibiting shorter necks?
A
The long-necked giraffes would breed with a short-necked species
B
Giraffes with a genetic mutation for short necks would survive and reproduce.
С
The presence of food on shorter plants would lead to a relaxation of giraffe necks.
D
Giraffes would learn to bend their necks while feeding, causing a shortening of neck muscles
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the element that provides strength to the exoskeletons of clams and oysters is phosphorus.

this is so because calcium carbonate is the main component in the shells. calcium carbonate is strengthened by phosphorus.

explanation:

you did not attach the discourse, but i assume it to be the discourse on the origin and basis of inequality among men (the original titile in french is: "discours sur l'origine et les fondements de l'inégalité parmi les hommes"), also know as "second discourse". in this discourse, jean-jacques rousseau emphasizes that private property is the basis of all inequalities.

therefore, what enabled the old regime to maintain as long as it did was private property.

plato users:

d.  

there was a variety of food available on island x, but there were only large seeds and nuts on island y.