Three R's
Movement & Feeding
Homeostasis &
Ecological Significance
Evolution
100
RESPIRATION: This provides an enormous surface for gas exchange
What is an alveoli
100
MOVEMENT: Most important body structures for movement
What are muscles and bones
100
Ectotherm or endotherm
What is endotherm
100
Well-known members
What are humans, cheetahs and bears
200
REPRODUCTION: How do mammals reproduce and give birth
What is internal fertilization and viviparous
200
MOVEMENT: How do many mammals walk
What is upright with their legs under them, making minimal side to side movements
200
In excretion this is changed into this
What is ammonia changed into urea
200
Evolutionary tree position
What is most evolved organisms, they evolved during the mesozoic era about 200 million years ago
300
RESPIRATION: The benefit of having a double loop circulatory system?
What is no mixing of oxygen-rich and oxygen-poor blood in the heart
300
FEEDING: nursing
What are mammary glands
300
Excretory systems eliminate this
What is nitrogenous wastes
300
RESPONSE: Something well developed for the predators
What are eyes and hearing
400
RESPONSE: What makes the brain in mammals most developed?
What is an enlarged cerebrum and more developed cerebellum
400
FEEDING: How do herbivores have a specialized digestive system
What is long intestines and stomach with bacteria helping with the digestion of tough cellulose fibers
400
Three groups that mammals are divided into
What are monotremes, masupials and placental mammals
500
RESPIRATION: kind of heart do they have
What is a 4 chambered heart
500
FEEDING: How do carnivores have specialized digestive system
What is short digestive tracts that produce enzymes that rapidly digest meat
500
Do mammals reproduce sexually or asexually
What is sexually
500
The closest relatives and why
What are aves, because they are both warm blooded
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