True Horns Are

Q14: Pouched,viviparous mammals are called _.

Q15: Of the two kinds of mammals' sweat

Q16: The structures that are not derivatives of

Q17: Hair is produced by the layer of

Q19: The four kinds of teeth that are

Q20: _ are hunted and killed for their

Q21: In mammals,estrus is the time when the

Q22: In some nonruminant herbivores,such as rabbits and

Q23: The mammal that makes one of the

Q24: In contrast to birds,very few mammals make