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Chapter 4:Lesson 5

TermDefinition
Fish A vertebrate whose body temperature is determined by the temperature of its environment, and that lives in the water and fins
Cartilage A connective tissue that is more flexible than bone and that protects the ends of the bones from rubbing together
Amphibian A vertebrate whose body temperature is determined by the temperature of its environment, and that lives its early life in water and its adult life on land
Reptile A vertebrate whose temperature is determined by the temperature of its environment, that has lungs, scaly skin, and that lays eggs on land
Bird A vertebrate whose body temperature is regulated by its internal heat, lays eggs, and has feathers and a four-chambered heart
Mammal A vertebrate whose body temperature is regulated by its internal heat, and that has skin covered with hair or fur and glands that produce milk to feed its young
Mammary Gland An organ in female mammals that produce milk for the mammal's young
Monotreme A mammal that lays eggs
Marsupial 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
Placental Mammal A mammal that develops inside its mother's body until its body systems can function independently
Placenta An organ in most pregnant mammals, including humans, that links the mother and the developing embryo and allows for the passage of materials between them
Created by: kdonnelly