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chapter4 lesson 2
ch 4 lesson 2
| Question | Answer |
|---|---|
| tissue | A group of similar cells that performs a specific function, muscle tissue, nervous tissue and connective tissue are all animal tissue |
| Organ | Made of up different tissues |
| Radial Symmetry | Imaginary lines can be drawn through a central point to divide to 2 mirror images. |
| Bilateral symmetry | Only one line of symmetry can be drawn to divide to halves that are mirror images. |
| An animals body plan | Organization of an animal cell into higher level of structure including tissues, organs, and organ systems. |
| How structure of animals are related to their symmetry | Bodies of animals without symmetry are organized simply with some specialized cells but no tissues. Animals with radial symmetry have complex body plans with tussues and organ systems. |
| Asymmetrical body type and give an example | No symmetry. example is sponge |
| Radial body symmetry | All animals with radial symmetry live in water. Most animals with radial symmetry do not have heads or front or back ends. Example is a starfish |
| Bilateral body symmetry | Only one line of symmetry can be drawn to divide into halves that are micro images. Example is a crab. |
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