The respiratory system consists of all the organs involved in breathing. These include the nose, pharynx, larynx, trachea, bronchi and lungs. ... The nose, pharynx, larynx, trachea and bronchi all work like a system of pipes through which the air is funnelled down into our lungs.
The answer is A It protects the seed until it matures.
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Out of the photosynthesis (plants).
Answer:
c. population
Explanation:
biosphere includes different species and a broad ecosystem
ecosystem is different species
environment refers to a just the type of ecosystem such as aquatic environment
Answer:
B. Nebula
Explanation:
A solar system, an asteroid, and a galaxy is not made of dust and gas. But a nebula is made of dust and gas
