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Sci. Vocab Test
| Question | Answer |
|---|---|
| the phylum whose members have a notochord, a nerve chord, and slits in their throat area at some point in their lives | chordate |
| a flexible rod that supports a chordates back | notochord |
| the bones that make up the backbone of an animal | vertebra |
| an animal whose body does not produce much internal heat | ectotherm |
| an amimal whose body regulates its own body temperature by controlling the internal heat it produces | endotherm |
| an ectothermic vertebrate that lives in water and has fins | fish |
| a tissue that is more flexible than bone | cartilage |
| an internal gas-filled organ that helps a bony fish stabilize its body at different water depths | swim bladder |
| an ectothermic vertebrate that spends its early life in water and its adult life on land | amphibian |
| The larval form a frog or a toad | tadploe |
| an organ found in air breathing vertebrates that exchanges oxygen and carbon dioxide with blood | lung |
| an upper chamber of the heart that recieves the blood | artium |
| a lower chamber of the heart that pumps blood out to the lungs and body | ventricle |
| the specific environment in which an animal lives | habitat |
| a ecthothermic vertebrate that lays eggs and has lungs and scaly skin | reptile |
| a watery fluid produced by the kidneys that contains wastes | urine |
| an organ that filters wastes from the blood | kidney |
| an edd with a shell and internal membranes that keep the embryo moist: a major adaptation to life on land characteristics of reptiles, birds, and egg laying mammals | amniotic egg |
| the hardened remains or evidence of a living thing that existed a long time ago | fossil |
| A scientist who studies extinct organisms, examines fossil structure, and makes comparisons to present day organisms | palentoligist |
| rock formed of hardened layers of sediments | sedimentary rock |
| an ectothermic vertebrate that has feathers and lays eggs and a four chambered heart | bird |
| a large feather that helps give shape to a bird's body | contour feather |
| a short, fluffy feather that traps heat and kepps a bird warm | down feather |
| an internal organ in many birds that stores food | crop |
| a muscular, thick walled part of a bird's stomach that squeezes and grinds partially digested food | gizzard |
| the difference in pressure between upper and lower surfaces of a bird's wings that produces an upward force causes the bird to rise | lift |
| an ectothermic vertebrate with a four chambered heart and skin covered with fur or hair, that feeds its young withmilk from a mother's body | mammal |
| an organ in femal mammals that produces milk for the mammal's young | mammary gland |
| a large muscle located at the bottom of an animal's rib cage that functions in breathing | diaphragm |
| a mammal that lays eggs | monotreme |
| a mammal whose young are born at an early stage of development, and which usually continue to develop in a pouch on their mother's body | marsupial |
| the length of time between fertilization and birth of a mammal | gestation period |
| a mammal that develops inside its mother's body until its body systems can function independently | placental mammal |
| an organ in pregnant placental mammals tht passes materials between the mother and the developing embryo | placenta |
Created by:
ltgoheen
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