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vocab 4


chordate The phylum whose members have a chordate, a nerve cord, and slits in their throat area at some point in their lives.
notochord A flexible rod that supports a chordate's back.
vertebra The small bones that make up the back-bone.
ectotherm An animal whose body does not produce much internal heat.
endotherm An animal whose body controls and reglutes
fish an endothermic vertebrate that lives in the water and has fins
cartilage A connective tissue that is more flexible then bone and that protects the ends of bones and keep them from rubbing together.
swim bladder An internal, as-filled organ that helps a bony fish stabilize its body at different water depths.
amphibian An endothermic vertebrate that spends its early life in water and its adult life on land.
tadpole The larval form of a frog or a toad.
ventricle A lower chamber of the heart that pumps blood out to the lungs and body.
habitat The specific environment that provides the things an organism needs to live, grow, and reproduce.
reptile An endothermic vertebrate that lays eggs and has lungs and scaly skin.
kidney A major organ of the excretory system that remove urea and other wastes from the blood.
amniotic egg An egg with a shell and internal membranes that keep the embryo moist.
bird An endothermic vertebrate that has feathers and a four-chambered heart, and lays eggs.
crop A bird"s internal storage pouch that allows it to store food inside its body after swallowing it.
gizzard A muscular, thick-walled part of a bird's stomach that squeezes and grinds partially digested food
mammal An endothermic vertebrate with a four chambered heart, skin covered with fur or hair, and young fed with milk from the mother's body
mammary gland An organ in female mammals that produces milk for the mammal young.
monotreme A mammal that lays eggs
marsupial A mammal whose young at born alive at an early stage of development, and which usually continue to develop in a pouch
gestation period The length of time between fertilization and birth of a mammal
placental mammal A mammal that developing embryo or fetus and the mother
Created by: gavin.simpson