What happened during the cambrian explosion ?

a. groups of dinosaurs began to evolve into the ancestors of modern birds.

b. animals evolved a variety of complex body parts.

c. early chordates began toj appear.

d. many groups of vertebrate animals became extinct.

Which of the following statements regarding anfinsen's denaturing experiments with ribonuclease a (rnase a) are valid? exposing the denatured protein to air oxidation and then dialysis to remove urea restored the protein to its original functionality. removing urea by dialysis and then allowing air oxidation of the denatured protein restored the protein to its original functionality. denaturing the protein with both urea and β-mercaptoethanol yielded an inactive protein. anfinsen concluded that protein folding is determined by its primary sequence.

Apart of an ecosystem that can restrict the growth of a population is referred to as

Which term specifically refers to an area of the body between a medial and lateral structure