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How do mammals reproduce. GROUPS. We can classify mammals into 3 groups by the way that they reproduce Monotremes Marsupials Placental mammals. MONOTERMS.
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GROUPS We can classify mammals into 3 groups by the way that they reproduce • Monotremes • Marsupials • Placental mammals
MONOTERMS Monotremes don’t give birth . They lay eggs.The young grow inside the eggs . They are quite well-developed when they come out .
MARSUPIALS The young grow inside their mother´s body , but they aren´t well-developed when they are born . They must continue to develop inside their mother´s puch .
PLACENTAL MAMMALS They are the most numerous group of mammals. The young grow inside the mother´s body. They are well-developed when they are born.
HUMANS BEGINS We are placental mammals . We also are members of the primate family , along with chimpanzees and gorillas . We also share this characteristics with them . • We have fingers that we can use to manipulate objets . • Our eyes are at the front of our head . So we can see straight ahead . • We are different because we are bipedal . That means that we walk on two legs .
PLATYPUS Most platypus live in Australia, others live in Tasmania . Their body is covered with dense, brown fur that traps a layer of insulating air to keep the animal warm . They are carnivores .
QUESTIONS • How many groups of mammals are there? • Do monoterms give birth? • Where do platypus live? • Where do young marsupials grow?
ANSWERDS • There are 3 groups. • No,they lay eggs. • Most live in Australia, but others live in Tasmania. • In their mother´s body.
VIDEOS • MAMMALS • DOCUMENTAL OF MAMMALS
GAMES • GAME OF MAMMALS
BY SOFIA GALLARDO SUBJET:SCIENCE CLASS:5ºA