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APSM Biology 5.3

APSM CA Biology 5.3 Vertebrates

TermDefinition
amnion sac where embryo develops
amphibian smooth-skinned, cold-blooded vertebrate that has a 3 chambered heart and generally spends part of life in water and part on land
backbones vertebral column that is the chief structural member of the body
birds Feathered, flying vertebrates
bony fish fish whose skeleton is made either partially or wholly of bone
cartilaginous fish fish whose skeleton is made of cartilage instead of bone
ceratopsian member of the group of dinosaurs that included Triceratops
cloaca A common opening for digestive, excretory, and reproductive systems
closed circulation blood stays inside the blood vessels
cranium head
dinosaur group of extinct land-dwelling creatures that resemble reptiles in some ways
gizzards muscular rear portion of bird’s stomach that has horny plates to grind food
homeothermic maintaining the same internal body temperature regardless of environment
jawless fish vertebrates that lack jaws and paired fins, they have gill pouches and a cartilaginous skeleton
lateral line organ organ that detects movement of water around shark
mammals vertebrates that are warm-blooded with hair and mammary glands
mammary glands milk-producing glands in female mammals
marsupials mammal that gives birth to immature young which are then nourished inside a pouch
monotremes mammals that lay eggs
opercula gill covers of a fish
oviparous egg laying
ovoviviparous giving birth through eggs that hatch within the mother’s body
placental mammals mammals that nourish growing young through a placenta until birth
poikilothermic Having a variable body temperature
reptiles cold-blooded animals that have scaly skin, breathe through lungs, and have a 3 or 4 chambered heart
sauropod large, herbivorous dinosaurs characterized by long necks and columnlike tails
squamates group within reptiles that includes lizards and snakes
swim bladder hollow, gas filled chamber that allows fish to adjust their buoyancy
theropod bipedal dinosaurs characterized by powerful lower legs used for walking and smaller arms used for grasping
viviparous giving birth to live young
Created by: samundoacademy
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