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Mod 15-Chordates pt1
Module 15 A/B: Animals - Chordates part 1
| Term | Definition |
|---|---|
| Vertebrae | segments of bone or some other hard substance that are arranged into a backbone |
| Notochord | a rod of tough, flexible material that runs the length of a creature's body, providing the majority of its support |
| Endoskeleton | a skeleton on the inside of a creature's body |
| Arteries | blood vessels that carry blood away from the heart |
| Capillaries | tiny, thin-walled blood vessels that allow the exchange of gases and nutrients between the blood and the cell of the body |
| Veins | blood vessels that. carry blood back to the heart |
| Olfactory lobes | the lobes of the brain that receive signals from the receptors in the nose |
| Cerebrum | the lobes of the brain that integrate sensory information and coordinate the creature's response to that information |
| Optic lobes | the lobes of the brain that receive signals from the receptors in the eyes |
| Cerebellum | the lobe that controls involuntary actions and refines muscle movement |
| Medulla oblongata | the lobes that coordinate vital functions, such as those of the circulatory and respiratory systems, and transport signals from the brain to the spinal cord |
| Internal fertilization | the process by which the male places sperm inside the female's body, where the eggs are fertilized |
| External fertilization | the process by which the female lays eggs and the male fertilizes them once they are outside of the female |
| Oviparous development | development that occurs in an egg that is hatched outside the female's body |
| Ovoviviparous development | development that occurs in an egg that is hatched inside the female's body |
| Viviparous development | development that occurs inside the female, allowing the offspring to gain nutrients and vital substances from the mother through a placenta |
| Bile | a mixture of salts and phospholipids that aids in the breakdown of fat |
| Atrium | a large muscular heart chamber that receives blood that is about to enter the ventricle |
| Ventricle | a thick-walled, muscular heart chamber from which the blood is pumped out to the body |
| Andromous | a life cycle in which creatures are hatched in fresh water, migrate to salt water as adults, and then go back to fresh water in order to reproduce |
| Hibernation | a state of extremely low metabolism and respiration, accompanied by lower-tan-normal body temperatures |
| Amniotic egg | a shelled, water-retaining egg that allows reptile, bird, and certain mammal embryos to develop on land |
Created by:
MelRodriguez
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