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5/27 & 5/28- 7th Grade Agenda Learning Objective: Learn about Mammals & Family Life Collect HW: Homework: Reading & Notetaking p. 239 – 242 Video: New born Kangaroo Family Life Lesson #2 Textbook Reading HW: Reading & Notetaking p.243 – 246 Reminder: Chap 12 Test on 5/29 & 5/30 Reminder: Last day to turn in late work is 6/4
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Reflection Prompt: Write 3 Questions that you have about mammals.
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Characteristics of Mammals
endothermic vertebrates four-chambered heart skin covered with fur or hair. Most mammals are born alive young mammal is fed with milk
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Do Dolphins have hair? Yes. Near their blow holes
Most of the hair disappear when they get older
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What are the function of hair and fur?
Fur and hair prevent body heat from escaping Helps maintain a stable body temperature in cold weather Animals in cold regions have thicker coats of fur
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When did the first mammals appear?
About 270 Million years ago They were small mouse like animals After the dinosaurs disappeared about 65 million years ago, larger mammals evolved
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You can tell the type of food mammals eat by its skull & teeth.
What type of food does this animal eat?
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You can tell the type of food mammals eat by its skull & teeth.
What type of food does this animal eat?
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Do some mammals lay eggs?
Yes. Monotremes lay eggs: Two types of Monotremes are: Spiny Anteaters & Duck billed platypus
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What are Marsupials? Marsupials are mammals The young are born alive
But at an early stage of development, they develop in a pouch on their mother’s body
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Baby Kangaroo in mother’s pouch
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What are Placental Mammals?
Placental mammal develops inside its mother’s body
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Diversity of mammals Most of the mammal species are bats and rodents
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Reflection Prompt: Write 5 facts that you learned in the video
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