The _____ are the only mammals that lay eggs.
marsupial
monotremes
mamarian
placental
placoid
monotremes
What is the definition of monotreme?
A)a tube that connects an unborn baby to its mother for nourishment
B)the gland of a mammal that produces milk for the young
C)having a placenta, the organ that nourishes young until birth
D)a mammal that has just one passage for elimination and egg laying
E)a mammal which gives birth to a fetus that moves into a pouch for protection and nourishment
D) a mammal that has just one passage for elimination and egg laying.
The _____ is a marsupial that can be found in America.
wallaby
bear
opossum
koala
kangaroo