Which of the following are found in both plant and animal cells?
a.)vacuole
b.) chloroplast
c.) cell wall
d.) nucleus

The nucleus is found in both plant and animal cells along with the vacuole

Explanation:

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.

explanation:

option a and d is the correct answer

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