Whatever do you mean? Do not ask questions like this on this site- it aggravates many people all over the world- for we cannot take your stupid question of the site.
A zoologist ias involved in the study of animals.
I
Breathing.
i think respiration
Horses
Sperm and egg cells are the two cells involved in fertilization of animals and humans.
there is no tricks involved or even slight of hand involved. the Lord God made all animals adaptable to their natural surroundings. Camouflage
Insects
Chromosomes :)
Muscular tissue .
People who are involved in agriculture in North Dakota raise animals or crops or both animals and crops.
Theres not just one animal involved in environmental science, all animals are a part of it.