Eukaryotes are organisms whose cells have a nucleus enclosed within a nuclear envelope.
The principle is called CEPHALOCAUDAL PRINCIPLE.
This principle proposed that growth follow a particular pattern in which the head and the upper part of the body grow first before the growth proceeds to other part of the body.
A. Kinetic energy is the energy of motion. B,C,D all describe situations where there is not movement.
Phylum is a principal taxonomic category that is ranked below the kingdom and above the class. If two organisms are in the same phylum, this means that they are also in the same kingdom. Each phylum is composed of one or more classes.