Question

choose the correct answers

1, in cockroaches air enters the body through
(i) lungs (ii) gills (iii) spherical (iv) skin
2, normal range of breathing rate per minute in as average adust per minute in an average adust person at rest is
i) 9-12 (ii) 15-18 (iii) 21-24 (iv) 30-33



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Answer 1

Answer:

the answer is option 3

Explanation:

Answer 2

Answer:

1. spiracles not spherical

2. 15-18