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1 chapter · 13 notes · all free

1. Animal Diversity and the Start of ClassificationIs a difference in hair colour the same kind of diversity as tigers and deer sharing a forest?
2. Cleavage and Germ LayersHow many layers does a Hydra embryo have, and what sits in the middle: jelly or cells?
3. Symmetry, Segmentation and Body PlanesIn how many ways can a Hydra be cut into equal halves, a human, a sponge?
4. Coelom, Notochord and Alimentary CanalIs every empty space inside a body a coelom? Look for the peritoneum.
5. Principles of Classification and NomenclatureWhy is it Homo with a capital and sapiens with a small letter? The seven ranks and the naming rules in one note.
6. Necessity of Classification and Hickman's Major PhylaOf 33 animal phyla, how many are major, and which one holds the most species?
7. Nonchordata: Porifera to NematodaA sponge has no tissues, and a round worm has a tube within a tube. Can you name the ladder in between?
8. Nonchordata: Mollusca to EchinodermataA snail, an earthworm, a cockroach and a sea star: which phylum is each, and how do you tell?
9. Phylum Chordata and its SubphylaWhy do a hilsa, a hen and a baglike animal stuck to a rock share one phylum?
10. Vertebrata: Cyclostomata and the Fish ClassesWhich fish has an unequal tail, which a fused one, and which has no jaws at all?
11. Vertebrata: Amphibia to MammaliaA frog goes back to water to lay eggs and a snake does not. Which barrier did reptiles cross to conquer the earth?
12. Practical: Identifying Nonchordate SpecimensWhich group does the specimen floating in the jar belong to, and which marks tell you?
13. Practical: Identifying Vertebrate SpecimensTaki and hilsa are both Actinopterygii, so how do you tell them apart in the viva?

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