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10 Cards in this Set
- Front
- Back
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How many animals are currently known to scientist? |
Over 1 million. |
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How many species are there actually thought to be? |
3-30 million |
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What things do all animals have in common? |
Eukaryotic, Heterotrophic, Multicellular |
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How do most animals reproduce? |
Sexually |
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What is the cell called when egg and sperm fuse? |
Zygote. |
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What genes control the body plan of many animals? |
HOX genes. |
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What are two ways to classify animals? |
Body symmetry and embryological development. |
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What are the 3 types of planes used to divide an animal? |
Sagittal, coronal, transverse |
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What does the endoderm give rise to? |
Digestive tract, trachea, bronchi, lung linings |
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What does the endoderm give rise to? |
Epithelial tissue and CNS. |
