I am no expert but I think the correct answer is C.
You mean histology right??
Histology:
Histology, also microanatomy, is the ponder of the life structures of cells and tissues of plants and creatures utilizing microscopy.
Overproduction - An organism gives birth to too many children
Genetic Variation - The offspring each have genetic differences in appearance, behavior, etc
Struggle to Survive - Offspring must fight in order to gain essential resources (food, water, mates, etc)
Successful Reproduction - Organism produces offspring with beneficial adaptations that aid in survival
Chemicals from sea slugs may be useful in <span>sewage treatment plants.
</span>The sewage treatment plants process includes <span> removing contaminants from wastewater, primarily from household sewage. </span>
The output of the sewage treatment process is treated wastewater that is safer for the environment.
Answer:
The answer is D Each part is connected to all the others
Explanation:
While each part is different they interact with eachother to exchange matter and make life possible :) Hope this helps!