A recessive allele is expressed if there is no dominant allele present.

A) True B) False

The process of getting rid of liquid cell wastes

Which mineral is not involved in generation of nerve impulses? a. phosphorus b. sodium c. calcium d. magnesium?

Why might rain forests in South America and near the equator be so productive?

Many cultures and religions have customs which deal with the way they use the land. For example, in Judaism, it is required that a field be left fallow (unplanted) every seventh year.

A group of students is investigating whether silver is a better thermal conductor than copper. The students take a silver wire and a copper wire of the same length and diameter.

Which is a main function of lipids?

Probiotics are foods, like yogurt, or dietary supplements that contain living bacteria. why would someone want to knowingly consume bacteria?

Cellular is all of the chemical reactions in cells

Why is grass and leaves green

Why do flowers usually contain more stamens than pistils?