Term
what are the 2 major groups?
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Definition
| vertebrates and invertebrates |
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Term
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Definition
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Term
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Definition
| animals without backbones |
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Term
| What are the 6 characteristics of animals? |
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Definition
1. multicellular and eukaryotic
2. most reproduce sexually
3. develop from embryos
4. have specialized parts
5. most move at some stage in life
6. consumers |
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Term
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Definition
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Term
| what are 3 ways that animals protect themselves from predators? |
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Definition
1. camouflage
2. defense mechanisms (horns. spines, chemicals)
3. warning colors (black and yellow, red, orange, white) |
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Term
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Definition
| (instincts) influenced by genes; they are born with it |
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Term
| What is learned behavior? |
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Definition
| results from expirience and practice |
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Term
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Definition
| when animals travel from one place to another to accomodate them with the necessities of life |
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Term
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Definition
period of inactivity during the winter.
they survive on body fat |
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Term
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Definition
| period of inactivity during summer |
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Term
| what is a biological clock? |
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Definition
| it is an internal mechanism that controls natural cycles |
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Term
| What are circadian rhythms? |
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Definition
| behavioral cycles that occur in daily patterns |
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Term
| What 3 ways are invertebrates classified? |
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Definition
1. the type of body plan
2. whether or not they have a head
3. how they absorb and digest food |
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Term
| What are the 3 types of body plans that invertebrates have? |
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Definition
1. Bilateral- 2 similar halves
2. Radial- the body parts are arranged in a circle around a central point
3. Asymmetrical- no symmetry |
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Term
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Definition
| a group of nerve cells which control certain parts of the body |
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Term
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Definition
| it is a chamber that releases enzymes to break down food |
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Term
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Definition
| a container for all the special parts ( heart, lungs, etc) |
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