5. Name one crustacean that lives in the ocean, one that lives in freshwater, and one that lives on land.

Lets see um Hm id.k what that is yk?

Explanation:

Pillbugs or woodlice live on land

Crabs or lobsters live in Ocean

Explanation:

Decapods live in oceans(crayfish, lobsters,crabs)

isopods live on land (pillbugs,woodlice)

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:

hey bro i looked it up on google the structure of the eye-spot in euglena viridie, e. ehrenbergii, and phacus pyriyorme is not as franzé haa described it. the so-called “crystal body” and “lens bodies” were not found in any of the individuals of the species examined by me. as earlier observers have stated, the eye-spot consists simply of a mass of pigment granules arranged in a single layer, and probably embedded in a protoplasmic framework, but the latter could not be seen, and its presence was only inferred from the fact that the pigment granules must be held together in some way, thd the eye-spot as a whole is capable of expansion, and that the pigment granules can be separated from each other.

hope this   and an i get brainlsiest