Answer:
d
Explanation:
natural selection is where a organism adapts to their environment. Best one suited is D
Thus, positive reinforcement occurs when a behavior is encouraged by rewards. If a child enjoys candy and cleaning the room is the desired behavior, the candy is a positive reinforcer (reward) because it is something that is given or added when the behavior occurs. This makes the behavior more likely to recur.
It is A I think the insect lived first and so it is under because it is under a different layer so if they were around at the same time and the fish was just under water it would be in the same layer of rock but because it is different rock it was not around at the same time
The answer is true, Sponges can regenerate the entire organism from just a conglomeration of their cells. They can be cut up or mashed, and as long as they have two special cells called collencytes, which produce the gelatinous matrix in the sponge, and archeocytes, which produce all the other cells in the spongeâ??s body, the sponge will reform into the sponge it once was. Although, it will look different. Hope it helps!
Mitosis.
Asexual reproduction is the type of reproduction in which a cell make a copy of itself. In asexual reproduction there occurs simple cell division.No fertilization of egg and sperm can be seen in asexual reproduction. Thus in asexual reproduction offspring have identical genetic material as that of parent. Similarly in mitosis two identical nuclei are formed which are genetically identical to the nucleus of the parent cell.
