When did multicellular organisms appear

How are gradients important in diffusion and osmosis

How do somatic and inherited mutations differ? A. Somatic mutations exist in all cells in the body and inherited mutations only exist in the cell type that mutated. B. Somatic mutations only affect males and inherited mutations affect any gender. C.

Long radishes crossed with round radishes result in all oval radishes. This type of inheritance is:

G Which of the following statements is false? a. Cell-mediated attack is successful in killing viruses that reside inside the cell b. Antigen-presenting cells include macrophages and B cells. c.

What is a some differences between slugs and snails?

Animal lays eggs with a tough leathery watertight shell

Why is DNA antiparallel? It has double strands complementing each other. The bases in one strand pair with the other bases in the complementary strand. It has a ladder shape. Its double strands run in opposite directions.

Which of these is a solution, where the solute and solvent are in the gas phase? A) air B) ozone C) brass D) carbon dioxide

The roads in northern states (like Michigan) need to be repaired more often than roads in southern states (like South Carolina). Explain the effects mechanical weathering could have on this?

A substance that form hydrogen ions when dissolved in water is called a?