The single defining characteristic of the mammals is the presence of?

mammary glands.

a placenta.

hair.

warm blood.

a skul

4 answers

Look up the meaning of mammal.

its placenta..

No.

http://www.merriam-webster.com/dictionary/mammal

Hair is part of it so hair

Similar Questions

Use the cladogram below to answer the questions that followQuestion 1 Which characteristic is shared by humans, wallabies, and
1. 1 answer
What trait separates a platypus from a brown bear on this cladogram?(1 point) Responses placenta placenta retractable claws
1. 1 answer
Use the cladogram below to answer the questions that followQuestion 1 Which characteristic is shared by humans, wallabies, and
1. 1 answer
What trait separates a platypus from a brown bear on this cladogram?(1 point) Responses retractable claws retractable claws
1. 1 answer