Question

(i) The air tubes of insects
(ii) Skeletal structures surrounding chest cavity
(iii) Muscular floor of chest cavity
(iv) Tiny pores on the surface of leaf
Small openings on the sides of the body of an insect
(vi) The respiratory organs of human beings
(vii) The openings through which we inhale
(viii) An anaerobic organism
(ix) An organism with tracheal system​

Answer 1

Answer:

1. trachea

2.ribs

3.diaphargm

4.stomata

5.pore

6.lungs

7.nostril

8.yeast

9.cockroach

Answer 2

Answer:

(i) The air tubes of insects – Trachea

(ii) Skeletal structures surrounding chest cavity – Ribs

(iii) Muscular floor of chest cavity – Diaphragm

(iv) Tiny pores on the surface of leaf – Stomata

(v) Small openings on the sides of the body of an insect – Spiracles

(vi) The respiratory organs of human beings – Lungs

(vii) The openings through which we inhale – Nostrils

(viii) An anaerobic organism – Yeast

(ix) An organism with tracheal system – Ant