asked 181k views
2 votes
Which are characteristics of mammals? Check all that apply.

internal fertilization
three-chambered heart
endothermic
highly developed nervous system
several nearly hollow bones
always live on land

2 Answers

6 votes

Answer:

i was looking for the same answer but i can't get one eather

Step-by-step explanation:

answered
User Kimmi Dhingra
by
8.0k points
5 votes

Answer:

several hollow bones,endothermic

Step-by-step explanation:

answered
User Bonan
by
8.2k points
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