What are sickel cells

Classification of all known living organisms

All living organisms share many characteristics necessary for life. For example, all organisms, including both prokaryotic and eukaryotic, A. can use abiotic factors to make their own food. B. can sexually reproduce to produce unique offspring. C.

Write a paragraph describing how Earth would be different if photosynthetic plants had not evolved.

1.1.2 A physical property of proteins is that ... A. they dissolve in water. B. they are soluble in ether and alcohol. C. they are denatured at low temperatures. D. they are macromolecules.

Which base is found only in DNA? adenine guanine cytosine thymine

Why do scientists divide the planets into inner and outer planets

Which is NOT a characteristic of most organelles? A. Lack a surrounding membrane B. Found in animal and plant cells C. Perform a specific function D. Are miniature organs

What are the roles of the axon and dendrite?

Which statement best explains why compounds have different properties than the elements that form them? a. When elements form a compound, the bonds and structure of the elements change. b.

What part of your brain controls all mental activities? brain stem medulla cerebellum cerebrum