_______ cells are all of the reproductive cells (sperm and oocytes).

The hand is also known as the:

[a] – the study of internal and external structure and the physical relationships among body parts

Levels of Organization: List the levels in order (from the lowest to the highest)   (lowest level) [a] [b] [c] [d] [e] [f] [g] (highest level) organism

[a] – presence of a stable environment within the body; it is the foundation for all modern physiology.

On the pH scale, which number has the highest concentration of hydrogen ions?

[a] – group of tissues working together to perform a particular function

Which has the greater concentration of hydroxide ions, a substance with a pH of 8 or a substance with a pH of 9?

Levels of Organization: List the levels in order (from the highest to the lowest)   (highest level) [a] [b] [c] [d] [e] organelle [f] (lowest level) [g]

Cilia and flagella contain nine pairs of ________ surrounding a central pair.