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Mammals (Grade 10)

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Mammals

1. 
Which characteristic do mammals and birds share?
  1. dry, scaly skin
  2. live birth
  3. ectothermic
  4. endothermic
 
2. 
Which is a distinguishing feature of a mammal?
  1. has scales
  2. gives birth to live offspring
  3. produces milk
  4. lays eggs
3. 
Which organism is a mammal?
  1. great white shark
  2. praying mantis
  3. spiny lobster
  4. duck-billed platypus
 
4. 
Which group of mammals is characterized by laying eggs?
  1. monotremes
  2. placentals
  3. marsupials
  4. chondrichthyes
5. 
Which group of mammals do kangaroos belong to?
  1. placentals
  2. monotremes
  3. osteicthyes
  4. marsupials
 
6. 
Which group of mammals has offspring that look very similar to the parents at the time of birth?
  1. placentals
  2. marsupials
  3. monotremes
  4. succulents
7. 
How does body temperature in mammals differ from that of reptiles?



 
8. 
Mammals are unique among animals in that they are the only group to have                to keep them warm.
9. 
Mammals are the only animals that are able to use both sexual and asexual reproductive methods to produce offspring.
  1. True
  2. False
 
10. 
In the evolution of the great whales, it is believed that their ancestors migrated from the land into the sea. Which animal is thought to be the closest living relative to the whales?
  1. elephant
  2. great white shark
  3. hippopotamus
  4. rhinoceros
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