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dick
John Ray
by there behavior and the way they look
Receptors are groups of specialised cells. They detect a change in the environment stimulus. In the nervous system this leads to an electrical impulse being made in response to the stimulus. Sense organs contain groups of receptors that respond to specific stimuli.
No, animals that live in groups, or packs, actually tend to hunt larger animals. For example lions, they hunt in groups and take down some of the largest land animals in the world.
the assignment of organisms to groups within a system of categories distinguished by structure, origin, etc.
BoBert took the fouled and bones and bobbed it I luv u carol
Most animals do not live in family groups. Some animals that do include horses, lions, and dolphins.
Organisms that are considered to be simple, such as corals, sponges, urchins, many bacteria and protists all lack bilateral symmetry. The symmetry of these animals is one of the ways they are distinguished from each other and classified into groups.
Proximity, Similarity, Continuity, and Connectedness
vertebrates and invertebrates
Phylogenetic classification groups animals based on their evolutionary relationships and genetic similarities. This form of classification organizes animals into groups based on their shared ancestry and common descent.