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What makes something an animal?
Has to be...
Multicelluar, Cells lacking a cell wall, Obtain engergy by consuming other organisms, Motile at some point in lives, and Respond to external Stimuli
Evolution? what Milestones?
Not really newly introduced but have evolved into different new species through evolution These milestones can be seen through,
Anatomy, Embryological, and DNA sequences
What are Tissues
groups of cells which function as a unit such as a muscle
Why are tissues important? What animal does not have Tissues?
All animals have muscles which are made up of tissues.. Sponges do not have tissues
What is Bilateral?
Bilateral Symmetry is mirror images
What is Radial?
Radial Symmetry have even planes "x"