What is the fitness of an organism?
A. The number of resources an organism uses
B. The environment the organism lives in
C. The ability to survive and reproduce
D. The total population of a species

The answer is C. The ability to survive and reproduce.

Explanation:

The definition of biological fitness is "the ability to survive to reproductive age, find a mate, and produce offspring." In simpler terms, the more offspring an organism produces during its lifetime, the greater its biological fitness. (Courtesy of Google)

igneous rocks which formed by the crystallization of magma at the surface of the earth called extrusive rocks. they are characterized by fine-grained textures because the rapid cooling at or near the surface did not provide enough time for large crystals to grow.

the main thing i would use is bricks because if there is a hurricane, there is a great possibility for the house to still stand. and i would also use plexiglass windows instead of regular windows because plexiglass isn't prone to breaking.