Question

(vi) Diaphragm forms the
of the chest cavity.
(vii) Exchange of gases in the leaves take place with the help of
(viii) Cockroaches breathe with the help of air tubes called SPL​

Answer 1

Answer:

1. The diaphragm is a C-shaped structure of muscle and fibrous tissue that separates the thoracic cavity from the abdomen. ... The superior surface of the dome forms the floor of the thoracic cavity, and the inferior surface the roof of the abdominal cavity.

2. Stomata

3.A new study on cockroaches draw in air through external valves called spiracles and transport the air directly to the cells via tubes called trachea...

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