Transcript Mammal PowerPoint 1 - Mugans Biology Page

Phylum and Subclasses
• Phylum: Mammalia
• Subclasses: Monotremes
– Lay eggs
• Marsupials
– Very immature young, females usually have
pouches
• Placentals
– Develop young in placenta when unborn
Mammal Subclasses
Subgroups
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Orders
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Monotremata (Platypus)
Didelphinorphia (Opossum)
Paucituberculata (Shrew)
Microbiotheria (Colocolo)
Dasyuromorphia (Tasmanian Devil)
Peramelemorphia (Bandicoot)
Notoryctemorphia (Marsupial Mole)
Diprotodonta (Kangaroo)
Xenarthra (Armadillo)
Pholidota (Pangolin)
Subgroups Continued
• Lagmorpha (Rabbit)
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• Rodonetia (Rat)
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• Macroscelidae (Elephant•
Shrew)
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• Insectivora (Hedgehog) •
• Scandentia (Treeshrew) •
• Primates (Gorilla)
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• Dermoptera (Cobego) •
• Chiroptera (Bat)
Carnivora (Weasel)
Tubulidentata (Aardvark)
Artiodactyla (Giraffe)
Cetacea (Whale)
Perissodactyla (Horse)
Hyracoidea (Hyrax)
Proboscidea (Elephant)
Sirenia (Manatee)
Habitat and Food Source
Can live anywhere from oceans to
deserts to the Arctic
Food source can be anything
Includes:
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Carnivores- meat only
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Herbivores- plants only
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Omnivores- plants and meat
Importance to Humans
• Humans are mammals themselves
• Provide a food source (meat products)
• Pets (dogs, cats, horses, e.g.)
Unique
Characteristics
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All have hair or fur
Large complex brains
Backbone
Developed senses
Some can swim
Visual, vocal, and/or
olfactory means of
communication
• Family and social
groups
• Most diverse group
For More Unique Characteristics of
Mammals
Support Structures
• All have endoskeletons
– Endoskeleton is a skeleton
inside the body
• Are made of bones
• Backbone
• Some have tails for
balance
Respiration or Gas Exchange
• Receive oxygen, release carbon dioxide
• Lungs support the high Metabolic Rate
• Lungs have Alveoli (Gas Sacs)
– Humans have 300,000,000 Alveoli
• Have a diaphragm
– Moves air in and out
Reproductive System
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Reproduce sexually
Have a penis or uterus
Some lay eggs
Most have placentas
Life cycle is:
– Birth >> growth >> death
Nervous/Sensory System
• All have a large complex brain
• All have a backbone
• Spinal cords which connect to
muscles, organs and skin
• Nerves give them feeling
Circulatory System
• Warm blooded
• Blood carried from heart to the rest of the
body and back to the heart
• Vessels used to transport
• Pump pushes blood (heartbeat)
Video
Excretory System
• Blood flows to Kidney
• Ureter drains kidney
• Kidney drains into urinary bladder
• Urine exits bladder through urethra
Digestive System
• Substance is transported to stomach with
esophagus
• Stomach secretes gastric acids to kill bacteria
and break down substance
• Small Intestine does most of absorption of
substance
• Large Intestine at end of small intestine gathers
water lost in previous processes
• Waste is stored in the rectum until it is released
Examples
Works Cited
• Bowen, Richard. “Digestive System Anatomy.” About.com. 2008. 27
Mar. 2008 <http://www.about.com>.
• Carter, J. Stein. “Respiratory System.” UC.edu. 2004. 2 Apr. 2008
<http://biology.clc.uc.edu>.
• Encyclopedia Britannica. “Respiration: Mammals.”
Britannica.com. 2008. 2 Apr. 2008
<http://www.britannica.com>.
• Enriched Learning. “All About Mammals.” Enrichedlearning.com.
2002. 6 Apr. 2008 <http://www.enrichedlearning.com>.
• Miller, Kenneth R. and Joseph Levine. Biology: The Living
Science.” Upper Saddle River, NJ: Prentice Hall, 1998. 729736.
• Ramel, Gordon. “The Mammalian Skeleton.” Earth Life. 7 Jan. 2008.
27 Mar. 2008 <http://www.earthlife.net>.
• Whitfield, Philip. Animals: Mammals. 1 ed. 3 vols. New York, NY:
Macmillan. Library Reference, 1999.