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Chap. 16
| Question | Answer |
|---|---|
| sessile | Fixed in one place and are able to move the enviorment towards dem |
| bilateral symmetry | triangle |
| radial symmetry | pie; starfish |
| vertebrates | animals with bckbone |
| invertebrates | animals w/o bckbone |
| endoskeleton | skeloten |
| tetrapod | animals w/ 4 limbs |
| homeothermic | warm blooded mammals; maintaining the same temp. |
| omnivore | consume both plant and animals foods |
| placenta | A flattened circular organ in the uterus of pregnant eutherian mammals, nourishing and maintaining the fetus through the umbilical cord |
| embryo | stage of development |
| fetus | young individual |
| gestation period | entire period of growth from fertilization birth |
| umbilical cord | connecting fetus to the placenta |
| viviparous | mammals that bear their young alive and nourish them during development |
| oviparous | Egg-laying. |
| diurnal | Active during the day-time. |
| nocturnal | Active at night. |
| marsupial | Pouched animals |
| marsupium | An abdominal pouch. |
| insectivorous | Insect orders. |
| prehensile | A tail designed for grasping things. |
| tail | Is a body part designed for grasping objects. |
| rodent | Small, gnawing mammals. |
| hoofs | Enlarged thickened toenails |
| ungulates | Hoofed animals are called this. |
| ruminant | Animals that chew their cud. |
| rumen | The largest portion of the stomach |
| extinct | When a type of animal is no longer on earth. |
| endangered | In danger of becoming extinct. |