Question

The animal kingdom is made up of invertebrates (animals

without bones) and vertebrates (animals with bones),
Vertebrates are divided into five classes, or subphyla.
These five classes are mammals, birds, fish, reptiles, aná
amphibians, Humans are classified as mammals, or warm-
blooded vertebrates that nourish their young with milk.
Which of the following descriptions explains what mammals are?
A. The five classes of vertebrates
B. Warm-blooded vertebrates that nourish their young with milk
C. Animals without bones
D. Invertebrates and vertebrates

Answer 1

Warm-blooded vertebrates that nourish their young with milk

Step-by-step explanation:

i did this

Answer 2

B. Warm-blooded vertebrates that nourish their young with milk.

Hope this helps mate! Best of luck to you. :)