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Biology

Lymphocytes are specialized ________________cells.

is lichen growing on rocks a mechanical or a chemical

Earth’s energy sources include both renewable and nonrenewable resources. Name at least three sources of energy that could be used in your house. Then describe the ideal energy source for generating most of your home’s electricity, and explain why you chose that source.

what uses energy from the sun in the water cycle

in a cell protein synthesis is the primary function of

Using species C as a reference, you find greater genetic differences between species A and C than between species A and B. Which statement best reflects the mode of speciation in these mice?

1) Which two substances form the backbone of the DNA molecule? 2) Is the backbone of the DNA molecule identical in all living things? 3) Are base pairs always the same? 4) If there are five guanine bases in one strand of your DNA model, how many cytosine bases will be in the complementary strand? 5) If there are 10 thymine bases in one strand of your DNA model, how many adenine bases will be in the complementary strand? 6) Given the similarity of the DNA molecule across all living things (same pairings and only six components), why is there such a vast diversity of life?

About 2 3 of the mass of this cell is A) air. B) ribosomes. C) proteins. D) water.

The somatic motor association area is responsible for the

Human Population projects are subject to change due to

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