30. This part of the excretory system holds liquid wastes until they are removed through the urethra:
A. Rectum
B. Kidneys
C. Bladder
D. Large intestine

Directions: read the descriptions of the four islands presented in the lesson. 1. list two new traits that each new species of rat might demonstrate as it adapts to the conditions on each island. 2. introduce one of the four new rat species to another island and describe one challenge it would encounter and one success as it adapts to its new environment.

Math focus 4. calculate a map has index contours at 250 m, 500 m, and 750 m. what is the contour interval?

How can we use spectral lines of light coming from the superclusters to identify which is receding from earth at the slowest rate.