Which animal uses its skin for respiration? A. pelican B. lion C. toad D. mackerel

A gene pool consists of all the genes within a

Which two landforms are caused by convergent boundaries

In the 1600s, which scientist discovered microbes in pond water by using a microscope? A. Theodor Schwann B. Robert Hooke C. Anton van Leeuwenhoek D. Matthias Schleiden

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If the pituitary gland is not functioning properly, how might it effect the human body

Glutamic acid (Glu) and valine (Val) are two amino acids with different molecular structures. (Glutamic acid is a strongly hydrophilic molecule, and valine is a strongly hydrophobic molecule).

In the amino acid pool concept, what is another fate of amino acids that is not considered a "waste" of those amino acids

A scientist who classify organisms is called a

A group of hyphae is called?

Themes in the study of life