The lungs are part of the system.
a. musculoskeletal
b. urinary
c. nervous
d. respiratory

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.

The law of thermodynamics states that energy can't be created or destroyed. to natural sources of energy on earth are the

An original dna strand has the following base sequence taggtaact what base sequence would be produced through dna replication