Please enable JavaScript.
Coggle requires JavaScript to display documents.
What is an animal? (Functions of animals Animals vary in size and…
What is an animal?
Functions of animals Animals vary in size and structure. The main functions of all animals are to obtain food and oxygen, keep their internal functions stable, move, and reproduce.
-
-
-
Reproduction
-
Sexual Reproduction is the joining of two sex cells. The joining of a sperm and egg is called fertilization.
"Asexual Reproduction is the process of by which a single organism produces a new organism identical to itself."
Structure of Animals
"The cells of most animals are organized into higher levels of structure, including tissues, organs, and systems."
One type of tissue, carries messages in the form of electrical signals.
-
Classification of animals Biologist have classified animals into 35 major groups, each is called a phylum.
Animals are classified by how they relate to other animals. These relationships determine animal's body structure, and its DNA.