According to the figure?
http://i88.photobucket.com/albums/k176/sissybreanne/untitled-8.jpg
primates
cetaceans
marsupials
monotremes
2007-06-07 09:41:03 · 4 answers · asked by Sierra S 1 in Science & Mathematics ➔ Biology
Primates give birth to fully devoloped young.
Cetaceans (whales) give birth to fully devoloped young.
Marsupials give birth to under developed young that finish developing in a pouch.
Monotremes lay eggs. In that way, they resemble reptiles.
2007-06-07 09:57:45 · answer #1 · answered by mikecraig11 4 · 0⤊ 0⤋
The question is invalid. The monotremes may lay eggs, but that does not make them " closer " to reptiles. Proto-mammals, including monotremes, diverged from reptiles at the same time. Evolutionary progress is not linear, but more like a bush. Populations evolve, not individuals and the population of mammals is evolving together now; though the rate may vary, it is incoherent to say that monotremes are closer to reptiles than the other groups of mammals.
2007-06-07 10:31:17 · answer #2 · answered by Anonymous · 1⤊ 0⤋
Chicken
2007-06-07 09:47:56 · answer #3 · answered by JOHNNIE B 7 · 0⤊ 2⤋
monotremes thay lay eggs like the playpus
2007-06-07 09:49:29 · answer #4 · answered by damien d 2 · 0⤊ 0⤋