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tere tere
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6 years ago
What is the most abundant metabolic waste produced by animals?
 
  a. ketones
  b. sodium ions
  c. ammonia
  d. uric acid
  e. water

Question 2

What is the main reason that duck-billed platypuses are classified as mammals rather than birds? Consider that they possess a bill, as do birds, and lay eggs rather than give birth to live young like other mammals.
 
  What will be an ideal response?
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Replies
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#1
6 years ago
Answer to q. 1

c

Answer to q. 2

Platypuses are classified as monotremes, a group of mammals that lay eggs. Once the young hatch from their eggs, they cling to the belly of the mother and take in milk that oozes from openings in the mother's skin. Platypuses also are covered with fur rather than feathers.
tere Author
wrote...
#2
6 years ago
I wanna give this person a hug.
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