Mammals

Which of the following is a characteristic that all mammals share?

• they all have a pouch
• they all have a cloaca
• they all have hair
• they all have a short gestational period

Which of the following is a structure that mammals share that enables them to feed their young?

• diphyodont
• mammary glands
• sebaceous glands
• aortic arch

Which group(s) of mammals is oviparous?

• Monotremes only
• Marsupials and placentals
• Placentals and monotremes
• marsupials only

Which group(s) of mammals do not have a cloaca?

• monotremes and marsupials
• marsupials and placentals
• monotremes and placentals
• they all have a cloaca

Which group of mammals give birth to immature young that continue to develop in the mother's pouch?

• monotremes
• marsupials
• mammals
• none of these

Which group(s) are viviparous?

• monotremes only
• marsupials and monotremes
• placentals and marsupials
• placentals only

Which group of mammals has a long gestational period?

• monotreme
• marsupials
• placentals 
• they all have a short gestational period

Opposum and koala are both examples of which group of mammals?

• monotremes
• marsupials
• placentals

In which group of mammals does the embryo stay connected to the mother by a placenta?

• monotreme
• marsupial
• placenetal

Which group(s) of mammals have a cloaca?

• monotremes only
• marsupials and monotremes
• placentals and marsupials
• placentals only

Tags

NGSS.MS-LS4-2