decreasing the availability of natural fuels
Answer:
d. Skinner box
Explanation:
Skinner box provides an experimental condition that is used for examining natural flow of the behavior. It is also known with the other name as Operant conditioning chamber. It is a small chamber in which the animals for research are kept. Within the chamber there is a lever or key that the organisms under research can operate in order to get food or water in the chamber. An electronic equipment is connected to the chamber which records the activities of animals on keys or lever.
Mitosis (also known as cellular division) is just copying of cells. So the answer would be 18.If the question were about meiosis (sexual division), then the answer would be 9, because that would make 4 daughter cells, each encompassing half the original number of chromosomes (18).
Plants make their food in their leaves. And need sun for this process, so smaller and fewer leaves means less sun for photosynthesis, and it also means less food to nourish the plant.
2. The endosymbiotic theory suggests that a eukaryotic cell is the result of one prokaryotic cell eating another.
