Question 1

正确答案：F

Question 2

正确答案：A

Question 3

正确答案：D

Question 4

正确答案：A

Question 5

正确答案：genetic traits

Question 6

正确答案：heat loss

Question 7

正确答案：ears

Question 8

正确答案：insulating fat,fat

Question 9

正确答案：carbon emissions,emissions

Question 10

正确答案：B

Question 11

正确答案：C

Question 12

正确答案：A

Question 13

正确答案：C