Which substances are most commonly used as building blocks in the synthesis(making) of some lipids a.) amino acids and nucleotides b.) sugars and starches c.) glycerol and fatty acids d.) starches and enzymes

Will mark brainliest if correct/available! which of the following statements is true? all plants need flowers to sexually reproduce. sexually reproduced offspring are identical to their parents. fertilization always occurs inside the female's body. a body cell has twice the number of chromosomes as an egg cell.

What are the doorways into and out of cells, attached to the membrane, and built in the rough er.

What best describes the dropping height of a ball that bounces back up to a height of 45 cm