Which of the following is not directly involved in protein synthesis? tRNA
mRNA
Ribosomes
Mitochondria

Which of the following are the functions of the skeletal system? blood cell production in soft marrow tissues and mineral reserves largest organ of the body for defense and support vitamin d production and pumping blood through vessels voluntary movement and contractile movement

Contrast how pollination is different among gymnosperms and angiosperms.

What type of organism is a one-celled organism that functions as a single unit? a. bi-celled b. single-celled c. pre-celled d. multi-celled