How do craters most likely change over time? {answer choices}
a. it will get deeper as it fills with water
b. it will rise up like a volcanic crater
c. it will become less deep as the rim erodes
d. it will widen as it fills with lava

Mrna decodes information from the original dna master plan to build proteins in the during the process of ribosomes.

Acell in the human nervous system whose primary function is to form myelin and the blood-brain barrier, respond to injury, remove debris, and enhance learning and memory is called a(n) cell.

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.