Answer:
Plants are a source of food, fuel and medicine.
Explanation:
In biology, plants are photosynthetic living beings without locomotive capacity whose cell walls are mainly composed of cellulose.
The importance of plants for humans is indisputable. Without them we could not live, since the plants participated in the composition of the gases present in the Earth's atmosphere and in the ecosystems, and are the primary source of food for heterotrophic organisms. In addition, plants have direct importance to man: as a source of food; as building materials, firewood, fuel and paper; as ornamental; as substances that worsen or improve health and therefore have medical importance; and as a consequence of the latter, as the raw material of the pharmaceutical industry.
A. the cell is the smallest working unit of living things
Vacuoles are <span>large saclike, membrane enclosed structure - store materials like water, salts, protrins, and carbohydrates - like a storage unit</span>
Citizens of the World State are cremated when they die, so their bodies can be recycled and used as fertilizer. Their bodies aren't considered valuable, there are no funerals or grieving of the dead.
Hope this helps!
-Payshence xoxo
Answer:
A or/and D
Explanation:
Environmental science is the study of how organisms interact with their environment so it can be either a or d. I would say a combination of both.