Author: Anonymous

Your professor brings in a soybean plant that he uprooted from nearby. Small growths on the roots are stained to show bacteria. Your professor explains the bacteria can “fix” nitrogen into a usable form for the plant. The growths are called

When examining a mutant mouse, you notice that its skeletal muscle looks very uniform, lacking in striations. To figure out what the mutation is in this mouse, you would begin by looking at

Bacterial biofilms are important medically because they

The bacterium Rhizobium

The concentration of solutes in most soil is lower than the concentration of solutes in root cells, so water enters the roots by

In animals, a sphere of embryonic cells surrounding a fluid-filled cavity is called a

Calcium ions are required for muscular contraction.

Cells that produce fine fibers of collagen in cartilage are osteocytes.

Which of the following is not a member of the gymnosperms?

Bones can provide calcium to the rest of the body if it is needed.