Mammals

Question 1

List four mammal characteristics.

Answer 1

1) Bodies covered with hair
2) Feed milk to young, milk produced by mammary glands
3) Sweat glands - help us cool down
4) Types of teeth

Question 2

What are the three types of teeth and what are their purposes?

Answer 2

1) Incisors - biting teeth
2) Canine - tearing/ripping teeth
3) Molars/premolars - chewing/grinding food

Question 3

What are the three types of mammals?

Answer 3

1) Monotremes
2) Marsupials
3) Placental mammals

Question 4

What are monotremes and some of their characteristics?

Answer 4

Mammals that lay eggs. Milk is secreted from skin on their belly.

Question 5

What are the only two monotremes?

Answer 5

1) Echidna (Spiny anteater)
2) Duck billed platypus

Question 6

What are some marsupials?

Answer 6

Kangaroos, opossums (the only North American marsupial), wallabies, koalas, bandicoots, tasmanian devils

Question 7

List some facts about marsupial young.

Answer 7

They are born premature, and they crawl into their mother’s pouch to feed on milk. Finish development in pouch.

Question 8

List facts about placental mammals.

Answer 8

The majority of all mammals. Develop fully inside their mother’s uterus.

Question 9

Explain what a placenta is.

Answer 9

-Also called the afterbirth
-Many wild animals eat placenta due to its smell and it provides extra nutrients
-Absorbs food and O2 from mother’s blood