Which of the following structures is used for intracellular digestion? A)choanocyte
B)osculum
C)archaeocyte
D)pinacocyte

colors do exist. the color of the sky is actually violet; humans percieve the color of the sky as blue.

it marks things for degradation via the proteasome. it alters there celluar location.

the earth is thought to have been formed about 4.6 billion years ago by collisions from a cloud of hydrogen, helium, rock, ice and other materials. these were pulled together by gravity to form objects in and around earth like- asteroids and small early planets called planetesimals.

so, the best possible answer to this question will be option d- to harden materials to form different parts of earth’s layers