Answer:
C.) Species
Explanation:
Since you mentioned classifications for animals, the answer would not be families. Genus is a more general classification for animals and groups aren't even part of the classification for animals, so that would leave us with one answer, species.
Hope this helps ya :D
Answer:
When movement of an object occurs work is measurable.
Answer:
Option B, Foundation species
Some examples of foundation species are - Corals, Earthworms, Beavers etc.
Answer is D. Timothy will lack testosterone and will probably be unable to achieve an erection