AMNH Assignment.pdf From the 4% floor answer ane of the following questions, in
ID: 3519283 • Letter: A
Question
AMNH Assignment.pdf From the 4% floor answer ane of the following questions, in one or two well written paragraphs, but only up to a page, and upload that answer, along with the 5 short answers at the end, to SafeAssign: 1) How does the museum define a primitive mammal? What are some examples of primitive and advanced mammals found in the hall of primitive mammals? What are some modifications seen in the more advanced mammals 2) How have the jaw bones of fish transformed into the bones in the mammalian inner ear? How are Mammalian ears different from reptilian ears? 3) Horse evolution is discussed from the perspective the past and modern understanding of the evolutionary process. Is the evolution of horses best understood as a chain with links or a tree with simultaneous branches? Why are there so few branches today?Explanation / Answer
Primitive mammals refers to prototheria which includes duck billed platypus. Primitive mammals are not well advanced and mostly egg laying and they represent connecting link between birds and reptiles.
Examples of primitive mammals are platypus and opposum
Examples of advanced mammals represent all modern apes which are completely viviparous.
Metatheria evolved from prototheria includes marsupials kangaroo.
Modification seen in modern mammals
1. Completely viviparoud
2.milk secreting glands in female to feed young ones.
3.locomotory organs well adapted i.e flippers in whale,limbs in horse,wings in bats
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