External Respiration takes place in the Trachea. When oxygen and co2 "switch" its where they connect and making this external respiration!
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Cause earth orbits around the sun in a year and we have 24 hours in a day
Answer:
yes,The small "vessels" in the celery stalks carry the water and color to the leaves, like the way blood travels through your body.
Explanation:
Answer:
see in the picture below
Explanation:
A food chain is a flow of energy from a green plant (producer) to an animal (consumer) and to another animal (another consumer) and so on. In this lesson we are going to talk all about food chains and food webs in the environment.
The physical process that tend to change earth geological area and composition would be the plate tectonics.
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