1 / 9

Mammals

Mammals. What Makes a Mammal?. 5 Things All Mammals Have in Common: All breathe air All have 4-chambered heart All are endotherms (warm-blooded) All have mammary glands All have hair. Endotherms (Warm-Blooded). Mammals maintain a constant body temp Humans keep body at 98.6 

chogan
Download Presentation

Mammals

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Mammals

  2. What Makes a Mammal? • 5 Things All Mammals Have in Common: • All breathe air • All have 4-chambered heart • All are endotherms (warm-blooded) • All have mammary glands • All have hair

  3. Endotherms (Warm-Blooded) • Mammals maintain a constant body temp • Humans keep body at 98.6 • High metabolic activity keep temp high • Hair helps mammals keep warm • Sweat glands help cool down

  4. Feeding - Jaws • Jaws & Teeth help tell us what an animal eats • Molars = herbivores (plant eaters) • Canines = carnivores (meat eaters) • Incisors = teeth used for cutting or tearing

  5. Circulation • 4-Chambered Heart • Left Atrium • Blood in from lungs • Left Ventricle • In from left Atrium; out to body • Right Atrium • Blood in from body • Right Ventricle • In from right Atrium; out to lungs

  6. Diversity of Mammals • Monotremes = egg laying mammals • Marsupials = raise young in external pouch • Placental Mammals • Raise embryo in a placenta • Nutrients, Oxygen, Carbon Dioxide, & Waste exchanged through placenta

  7. Primates • Adaptations: • Binocular Vision • Well-developed Brains • Long fingers and toes • Arms that rotate around shoulder • Homonoids: great apes • Include Homo sapiens, gorillas, chimpanzees • Have opposable thumbs

More Related