What is the H-N-H bond angle in a molecule of NH3? A. 180°
B. < 109.5°
C. >109.5°
D. 120

The organism shown is a free-living one that is anchored to the bottom of ponds and streams during one stage of its life cycle what is the common name for the group to which this organism belong

If the concentration of phosphate in the cytosol is 2.0 mm and the concentration of phosphate in the surrounding fluid is 0.1 mm, how could the cell increase the concentration of phosphate in the cytosol? a) passive transportb) diffusionc) active transportd) osmosise) facilitated diffusion

The three types is stress that act on earths rocks are compression, tension, and