Lesson 5- Intro To Animals Flashcards
Define exoskeleton.
A hard, external, supporting structure.
Define invertebrate.
Organisms with no backbones.
Define vertebrate.
Organisms with a backbone.
Define endoskeleton.
An internal skeleton made of bones and cartilage.
What are the six characteristics that animals share?
Many cells, specialized parts, movement, reproduction, consume food, maintain body temperature.
Define differentiation.
The cells of a multicellular organism develops into different kinds of cells.
What is the most common type of reproduction in animals?
Sexual reproduction.
How do birds and mammals maintain body temperature?
By using the energy released by chemical reactions.
How do other animals maintain body temperature?
Others rely on the environment.
What are the three kinds of body plans?
Asymmetry, bilateral symmetry, radial symmetry.
Explain asymmetry.
Irregular shape.
Explain radial symmetry.
Organized like spokes on a wheel.
Explain bilateral symmetry.
Two sides that mirror each other along one plane with a central axis.
What groups make up the diversity of animals?
Size, shape, body plans, body coverings.
What are the body coverings?
Exoskeleton, endoskeleton, feathers, hard shell, soft tissue.
