The stomata and their guard cells allows this happen.
Stomata is like a hole or gap on a leaf, most of them are present in a bottom side of the leaf, since waxy cuticle is not present over there. And 2 guard cells make up a stomata.
Guard cells are able to control the size of the stomata, depending on the situation. For example, the guard cells close up during day time because a lot of sunlight may cause more water loss.
In conclusion, guard cells and the stomata are the main structures that allow carbon dioxide and oxygen (water too) diffuse in and out of leaves.
Its d the cell wall. The plant cell contains a cell wall that is absent in a animal cell.
Answer:
Coronavirus in its own doesn't have an advantage.
I believe that it helps us to prevent other epidemic diseases such as cholera and other diseases that are caused by lack of sanitization.
Since washing hands frequently is the way of preventing coronavirus.
And wearing mask also helps us to prevent other respiratory diseases being transmitted.
Answer:
Between a New Moon and a First quarter Moon.
(And I think when the entire face of the moon is completely illuminated. But I'm unsure about this part.)
Explanation:
