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Mammals phylum-Chordata class-Mammalia

Mammals phylum-Chordata class-Mammalia. Dan Meyers Bryce Wilson. Mammals live almost everywhere >most live on land >>forests >>deserts >>fields >>urban areas >some live in the sea They are very versatile >some can swim >some can fly. HABITAT_. FOOD_SOURCE_. DIET

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Mammals phylum-Chordata class-Mammalia

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  1. Mammalsphylum-Chordataclass-Mammalia Dan Meyers Bryce Wilson

  2. Mammals live almost everywhere >most live on land >>forests >>deserts >>fields >>urban areas >some live in the sea They are very versatile >some can swim >some can fly HABITAT_

  3. FOOD_SOURCE_ DIET >Mammals diets vary with time/seasons >Diet preferences/nutritional requirements vary DIFFERENT_DIETS >Omnivore >>Meat and Plants >Herbivore >>Plants only >Carnivore >>Meat only

  4. FOOD_SOURCE_ DIET_ADAPTATIONS >Herbivores can survive on few different plants >Herbivores can digest what man cannot SPECIALIZED_DIET >Koalas eat only eucalyptus leaves >3-toed sloth eats only the cecropia palmata (a mulberry like plant)

  5. DIGESTION_ HIGH RATE >They can digest 10x as much food as reptiles of the same size SPECIALIZED TEETH >stronger jaw >canines for cutting >molars for grinding

  6. DIGESTION_ SPECIALIZED_STOMACHS >Meat eaters >>shorter digestion, shorter intestines >Plant eaters >>longer digestion, long intestines ex.-cows have a four chambered stomach DIGESTION_EXPLAINED >Watch this video on digestion and nutrient exchange

  7. EXCRETORY_SYSTEM LIVER >Blood circulates through liver and is cleaned KIDNEY >Blood gets cleaned again by kidney >maintains and restores important compounds BLADDER >Waste in form of urea moves to bladder >Waste is excreted from the body

  8. EXCRETORY_SYSTEM EXCRETORY VOICE THREAD CLICK...

  9. SKELETAL_SYSTEM SKELETONS >vertebrae >>spine allows side to side/vertical movement SHOULDER/PELVIC GIRDLES >The shoulder/pelvic girdles are the systems of bones in the pelvic and shoulder regions. >complex shoulder and pelvis allows more movement

  10. RESPIRATORY_AND_CIRCULATORY_SYSTEM_ RESPIRATORY_SYSTEM >Inhale >>diaphragm and muscles in chest expand lungs >Oxygen moves into blood through alveoli-CO2 leaves blood CIRCULATORY_SYSTEM >Oxygen rich blood circulates through body >>oxygen moves into muscles >CO2 leaves muscles and moves into blood >>CO2 rich blood moves to lungs and leaves body ADAPTATIONS >Mammals have adapted better developed diaphragms and alveoli

  11. Nervous_System SIMILARITIES_TO_OTHER_MAMMALS >Medulla Oblongata >>controls breathing, heart, and unconscious systems >Cerebellum >>controls movement

  12. Nervous_System DIFFERENCES_FROM_OTHER_ANIMALS >Eyes >>specialized for low light conditions >>specialized for light and color >Cerebral Cortex >>well developed for complex actions/thoughts

  13. REPRODUCTION_ GENERAL >Sperm is dispersed in female reproductive tract >An egg is fertilized >>An embryo is created MONOTREMES >The cloaca is the reproductive organ >>Similar to reptiles >Eggs are laid >>Young develop in eggs >After born, they drink milk >>In Monotremes, milk come from pores in the skin

  14. REPRODUCTION_ MARSUPIALS >Have very short gestation period >>Virginia Opossum….......12.5 days >>Marsupial Cat……..........8-12 days >>Silver Gray Opossum….16 days >Young are underdeveloped >>They move into mother’s pouch >>They continue to develop >Young drink milk from mother

  15. REPRODUCTION_ PLACENTAL_MAMMALS >Most common >The embryo attaches to the wall of the uterus >Young are born fairly developed >After birth, they receive milk from the mother

  16. IMPORTANCE_TO_HUMANS_ Bats control mosquito population Shamu has been a great source of income Domestic animals >Pets >Food source

  17. HOW_THEY_ARE_UNIQUE_ SIZE >Blue whale(biggest animal) >African elephant(biggest land animal). SPECIALIZED SKILLS >fly >swim >walk HAIR >they have external hair

  18. MORE_UNIQUE_CHARACTERISTICS_ THEY HAVE A HIGH METABOLIC RATE THEY HAVE A LAYER OF FAT BETWEEN THEIR SKIN AND MUSCLE THEY HAVE A MORE COMPLEX JAW >allows for specialized teeth >>canines for carnivores >>molars for herbivores SKIN VOICE THREAD CLICK...

  19. EVEN_MORE_UNIQUENESS_ HEARING >three bones in inner ear-better hearing YOUNG >give birth to live young >nurse their young

  20. MONOTREMES_

  21. MARSUPIALS_

  22. CLICK FOR SOUNDS PLACENTAL_MAMMALS_

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