CHARACTERISTICS
OF MAMMALS
REPRODUCTION
MONOTREMES
MARSUPIALS
PLACENTAL
100
Mammals stay warm using one (or both) types of adaptations to their environment. What are they?
What is fur and/or blubber.
100
All mammals reproduce sexually through (internal or external) fertilization
What is internal
100
Monotremes have been called "furred reptiles". Why do you think early scientists thought this about them?
What is because they lay eggs.
100
How are marsupial infants different from placental infants?
What is they are not fully developed when they are born.
100
The only completely toothless mammal is the.............
What is the aardvark.
200
Name the three types of specialized teeth that set mammals apart from other animals.
What are incisors, canines, and molars
200
What is the only group of animals that lay eggs?
What are monotremes.
200
Monotremes do not have nipples. How do the babies nurse from their mother?
What is they lick the milk from the hair and skin around the mother's mammary glands.
200
All marsupials have what physical characteristic?
What is they have a pouch.
200
Rodents use their sharp incisors for what purpose?
What is gnawing and chewing.
300
What are the five senses mammals use to learn, move, and think quickly?
What are vision, hearing, smell, tough, and taste.
300
All mammals nurse their young using this physical characteristic
What are mammary glands
300
Monotremes are only found in which two countries?
What are Australia and New Guinea.
300
What is the main diet of koalas?
What is eucalyptus leaves
300
Walruses use their canines for what three purposes?
What is defending themselves, digging for food, and climbing on ice.
400
Name the three main ingredients in the milk all mammals feed to their young.
What are fat, protein, and sugar
400
The amount of time it takes for an embryo to develop inside the mother is called the ..........
What is the gestation period
400
Name the two types of monotremes.
What are echidnas and platypus.
400
What are young kangaroos called?
What are joeys.
400
How are hoofed mammals divided into groups? What are the two groups?
What is based on the number of toes they have. Odd and even numbers are how they are divided.
500
Name the large muscle mammals use to help bring air into their lungs.
What is the diaphragm
500
Food any oxygen are supplied to the embryo inside the uterus through what special attachment?
What is the placenta.
500
What three adaptations allow the platypus to survive in the water?
What are webbed feet, a flat tail, and a rubbery bill used for digging food.
500
How can a mother kangaroo nurse two babies of two different ages?
What is she can supply different nutrients through her mild through two different nipples.
500
Name three characteristics of primates.
What is eyes facing forward, five fingers on each hand and foot, flat fingernails, opposable thumbs, or large brains.
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