Which provides the organelles, building blocks for compounds such as proteins and nucleic acids, and other necessary materials for the zygote? a. sperm b. egg c. both the sperm and the egg d. none of the above

Red flowered snapdragons are crossed with white flowered snapdragons, producing all pink snapdragons in the f1 generation. what would you expect if you crossed pink with pink? 3/4, 1/4, 1/2 red, 3/4,/1/2,/1/4 pink,1/2, 3/4, 1/4 white

What is it called when part of a cell membrane closes around a molecule to allow the molecule to enter the cell? a. passive transport b.diffusion c. endocytosis d. exocytosisc. endocytosis

When ash and dust begin to settle on the ground, they eventually become compacted by