Answer:
Primary succession is basically the start of a brand new ecosystem. This is when pioneer species form and grow like lichens and some grasses. Secondary succession is when the ecosystem is already started and it's continuing to grow. During this time populations of other species begin to inhabit the ecosystem like shrubs and trees and some animals. Both of these processes take years to complete. An example of an event would be a volcanic eruption, and a wild fire.
Explanation:
As we inhale air, oxygen enters the respiratory system and the circulatory system to transport it to the other parts of the body and to all cells. As the oxygen is already transported, the blood becomes deoxygenated and carries a CO2 which returns to the lungs and then we exhale the carbon dioxide.
Answer:missense
Explanation:I just did this question and I got it right, so that’s how I know it’s right lol.
None because they are children play toys not scientific tools!
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Answer:
Sensory neurons
Explanation:
Sensory neurons receive impulses and carry them from the sense organs to the spinal cord or brain.
