Answer:
<u><em>Ozone.</em></u>
Ozone occurs both in the Earth's upper atmosphere and at ground level. Ozone can be good or bad, depending on where it is found. Called stratospheric ozone, good ozone occurs naturally in the upper atmosphere, where it forms a protective layer that shields us from the sun's harmful ultraviolet rays.
Explanation:
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Trait
I'm sorry I don't know how to explain it.
<span>Although both macro algae and mangrove trees are multicellular and share many of the same structural features, macro algae are not true plants. Also, mangrove trees and marsh plants typically live in brackish water rather than salt water and are not completely submerged, as opposed to macro algae.</span>
1. The Cell Wall.
Plants have a cell wall in order to maintain rigidity and stability. Animal cells do not have a cell wall because they have a different structure, which makes them more flexible and able to move around easier.
2. Chloroplasts
Since plants cannot move, they get their energy from the sun. This energy is made inside of the chloroplasts. Animal cells don't have chloroplasts because their energy comes from other organisms.
3. Central Vacuole
The central vacuole provides structure and holds materials and wastes, and also decomposes those wastes. Animal cells don't have a central vacuole because they have lysosomes and normal vacuoles that do the same function.
