I. Animal Characteristics:
I. Animal Characteristics A. All animals have 2 common characteristics
1. Mobilty
a. Motility- move from place to place
b. Sessile-move the water or air around it to obtain food
2. Diversity
a. One-cell amoebas to 100 ft whales
b. Over 1 million classified animals
Motile-Gray Wolf:
Motile-Gray Wolf
Sessile-Sponge:
Sessile-Sponge
Diverse-Amoeba:
Diverse-Amoeba
Diverse-100 ft. long whale:
Diverse-100 ft. long whale
Slide7:
B. Symmetry in Animals
1. Bilateral-cut in half only one-way
2. Radial-cut in half many ways
3. Asymetry-not symmetrical
Symmetry:
Symmetry
Slide9:
C. Classification of Animals
1. Kingdom- Animalia
2. Phylum
a. Invertebrates-no backbone, 95% of species
b. Vertebrates (chordata) have backbones
i. Spinal cord w/ anterior brain
ii. Endoskeleton
iii. Tetrapods
iv. Bilateral Symmetry
3. Class
1. Based on specific behaviors or traits