How old the stages in the diagram change for a star with eight times the mass of the sun

If a cell's main function is to produce proteins to be excreted, which organelles would you expect to be larger

Out of the seven main animal groups (fish, mammals, birds, insects, reptiles, amphibians, and arachnids), how many contain members with internal backbones? a. 5 b. 3 c. 7 d. 1

Stephen is a student who wants to test his knowledge of medical terminology. which option could he use?