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FC: Mammals | By: Pj Thompson and Caleb Evans
1: Kingdom-animalia Phylum-chordata Sub Phylum-Vertebata Class -mammals Orders-monotremes, marsupials, placental mammals
2: what is a mammal ? | ?
3: a mammal is a endothermic vertebrate , with a four chambered heart , and skin coverd by fur or hair the babies of most mammals are born alive witch means they don't hatch out of eggs , and every young mammal is feed by its mothers milk.
5: A biome is a group of ecosystems with similar climates and organisms. Mammals are found in all biomes the names are Rain Forest, Desert, Grassland,Deciduous Forest, Boreal Forest, Tundra, Mountains and Ice, Freshwater, and Marine
7: Mammals reproduce with internal fertilization, but some reproduce with eggs like the platypus. Every mammal gives milk to their young by using their mammary glands.
9: Mammals have bilateral symmetry. Just like humans most have two ears, one month, two eyes, and one nose. which are all symmetrical.
11: Permian Period was the period when the first mammals evolved and the Paleozoic Era is the era when the Permian Period was happening. | This is a Moschop (the first mammal)
13: MONOTREMES-monotremes are the only mammals to lay eggs . there are two types of monotremes spiny anteaters and the duck billed platypuses,both living in Australia and New Guinea. marsupials-are mammales who are born alive(not in a egg), but they live in there mom's pouch during there early stage of life .marsupials are every where but most are in South America and New guinea . Opossums are the only marsupials that live in north America.marsupials also have a very short gestation period, the length between fertilization and birth .for example the opossums only have a gestation period of about 13 days . placental mammals- placental mammals are different from other mammals because there babies develop in there mom's body until they are fully developed .
15: most mammals are either at the top of there food chain or at the bottom.for example zebra arethe prey, and are herbivores so they eat plants , so they will always stay at the the bottom next to plants becuase they don't eat other