How many amino acids cannot be made by the body

, so te must be obtained in he diet

An anthropologist finds a fossil in Africa that appeared less than 100,000 years ago. To which species could the specimen belong? Homo neanderthalensis Homo habilis Homo erectus Homo sapiens

Why does the light from flashlights decrease as i get afrther?

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. Exocytosis Answer: C. Endocytosis

In order to overlook someone's faults, it takes: 1-love 2-an understanding that you are not perfect 3-mental skills 4-stubbornness

Which atmosphere gas most directly influences the rate of photosynthesis

A structure on a cell that binds with something, like a hormone is called a (n) A. catalyst B. protein C. receptor D. axon

Which statement is true? A. Lipids are a type of fat. B. Fats are a type of lipid. C. Fats and lipids are separate and unrelated substances. D. All lipids are fats, and all fats are lipids.

What is the difference between a car and a human being?

In a hypotonic solution, an animal cell will?

Which fossil organism in whale evolution do you think was the first to live mostly in water?