A CELL WALL because the other three appear in different types of cells
Extinction refers to the eradication of an entire Species. Hope this helped!
Sulfur and phosphorus compounds enter bodies of water, such as ponds, lakes, and rivers <span>as run-off containing fertilizers and detergents. And based by this, this would then be runned by sedimentation as the deposition of how the water would work and how it would enter the bodies such as the ponds and lakes and other forms of water areas.</span>
Algae living on a sloth is considered an example of mutualism because both of them benefit from each other.
Mutualism is one of the symbiotic relationships in which both the two species living together benefit in one way or another. A considerable example of such a relationship is between algae and a sloth.
The algae provide camouflage to the sloth and protect it from predators while the sloth provides shelter to the algae for its growth. The sloth also gets nutrition from algae which perform photosynthesis and synthesize food.
Another mutual relationship is observed between the aphids and ants. Aphids produce honeydew as a waste product of their diet which is consumed by ants. While ants protect the aphids from predators and parasites.
To know more about mutualism, refer to the following link:
brainly.com/question/94753
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1. Healthy
2. Space
3. Recourses
4. Lower
5. Food supply
6. Increase
7. Emigration
