aim: what are the characteristics of mammals ? explain the difference between monotremes, marsupials...
TRANSCRIPT
AIM: What are the characteristics of mammals ? Explain the difference between monotremes, marsupials and placentals.
OBJ: Given notes and activity sheet SWBAT explain the characteristics of mammals and the difference between monotremes, marsupials and placentals with 70% accuracy
DN: HW check- Bird Activity SheetComplete & hand-in Birds Quiz scantron.
ACT: Introduction to Mammals (notes)Text, read p.132-140, Work on Mammals Activity Sheet
HW: Complete Mammals Activity Sheet; Work on Vertebrate Review Sheets and Animal Activity Sheet; Vertebrate Exam, Dec. 3
Mammal Characteristicsendotherms – warm blooded
4 chamber heart
fur/hair
breast (mammary glands, milk)
“care for young” behavior
lungs with diaphragm
advanced nervous system (complex brains for problem solving)
highly developed senses (large eyes, sonar, smell sensitivity)
Mammal Characteristics
Mammal AdaptationsTeeth Adaptations:
Incisors: cut
Canines: tear, slash
Molars: grind
Cold Environment Adaptations: to keep warm
Food (higher in calories, meat or fish)
Fur/hair
Fat
Movement Adaptations:
walk, run, hop, swing, glide,
swim (w/ flippers)
Three (3) Mammal GroupsMonotremes- lay eggs ex: spiny anteater, duck-billed platypus
Marsupials – partly developed young live in a pouch.
ex: koala bear, kangaroo, opossum
Placental Mammals – develop inside mothers body; diverse, subdivided based on eating and movement ex: carnivores (eat meat), marine (swim), rodents (gnaw), rabbits/hare (hop), trunk, insect eaters, toothless, hoofed, flying (wing), primates (large brain)
Monotremes
Marsupials
Mammal Diversity
More Mammal Diversityhttps://www.youtube.com/watch?v=RsV3bGPMTXo
Primates
Primates