I don't know if their is sopposed to be options but my best educated guess is "Natural"
B. and I get you the one who made up this question is dump -_-
Answer:
Exocytosis: It is defined as the process of membrane-bound vesicles fusing with the plasma membrane and later releasing their contents to the extracellular part of the cell.
Endocytosis: It is defined as the process of capturing a particle from outside the cell by the engulfing process with the cell membrane. It is basically two types:
1) Pinocytosis: Cellular drinking.
2) Phagocytosis: Cellular eating.
Explanation:
Worms are invertebrate animals with bilateral symmetry. Worms have a definite anterior (head) end and a posterior (tail) end. The ventral surface of worms and other organisms is the bottom side of the body, often closest to the ground. The dorsal surface is located on the upper part of the body facing the sky. The lateral surfaces are found on the left and right sides of the body. Figure 3.35 compares bilateral symmetry in a whale shark and a swimming plychaete worm. Organs for sensing light, touch, and smell are concentrated in the heads of worms. They can detect the kinds of environment they encounter by moving in the anterior direction
Answer:
(Not wanting to spend or use something)
Explanation:
Like someone or something really cheap, not wanting to use something in a way that it is a waste.
A man's car broke down, he didn't want to spend any money repairing it so he did it himself.
Or could just mean being careful with your resources.