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AS Mammals

QuestionAnswer
All mammals have ___ or fur to some extent. hair
Hair is made of this waterproofing protein and dead skin cells. keratin
Functions of hair in mammals include: camouflage, insulation, waterproofing, and sense of touch
Keratinized claws, nails, and hooves help mammals: move, defend themselves, and capture prey
Mammals are ___ meaning they can regulate their own body temperature. endothermic (warm-blooded)
Mammals are considered ___ because they have different shaped teeth. heterodonts
Most mammals are ___ meaning the have live birth. viviparous
Only a few mammals are ___ meaning they lay eggs. oviparous
All mammals produce milk in ________. mammary glands
Some mammals have ____ glands for waterproofing and to prevent drying out (lubrication). sebaceous (oil) glands
Some mammals have ____ glands for evaporative cooling. sudoriferous (sweat) glands
Some mammals have ____ glands for marking territory, attracting a mate, identifying others, or defending themselves. musk (scent) glands
The term prototherian means first (before) beast
The term metatherian means later beast
The term eutherian means true beast
Which types of mammals are prototherians? monotremes like platypus and echidna
Which types of mammals are metatherians? marsupials like kangaroo and opossum
Which types of mammals are eutherians? placentals like dog, mouse, and human
Monotreme means ___, and is referring to this body part. one hole; the cloaca
Monotremes are oviparous meaning they lay eggs
Platypuses have these characteristics which make them well adapted for life in the water. webbed feet, broad tail, electroreceptors on the mouth
Marsupials and placental mammals are viviparous meaning they have live birth
The underdeveloped fetus of a marsupial completes development in this pouch. a marsupium
Placental mammals have this structure in which unborn fetuses are supplied with essential nutrients and gases. placenta
Created by: ballb
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