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Which of these are common to all mammals? A: type of reproductive system, brain size, skin B: digestive system, heart lungs C: digestive system, number of toes, blood D: kidneys, liver, skeletal structure
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2 votes
Which of these are common to all mammals?

A: type of reproductive system, brain size, skin
B: digestive system, heart lungs
C: digestive system, number of toes, blood
D: kidneys, liver, skeletal structure

User Dennis Stritzke
by
5.0k points

2 Answers

7 votes

Answer:

Answer is B

Step-by-step explanation:

All of the other ones are either for humans or other things not common to all species

User Kyle Redfearn
by
5.0k points
4 votes
The answer is D kidneys liver skeletal structure
User Frameworksnow
by
5.1k points
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