how do mammals reproduce
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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. - PowerPoint PPT PresentationTRANSCRIPT
How do mammals reproduce
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 .
PHOTO HUMAN BEINSIn
this photo we can see a
girl with a monkey.
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:SCIENCECLASS:5ºA