Eliminate B and D, not all single celled organism carry out through photosynthesis , they called singled celled organism and not work with other cell, it's either A and C, single celled organism is not a complex organism. so you can eliminate letter C.
so the best answer is A, although they have multiple organs system to maintain their internal stability.
<span>The Golgi apparatus </span>is responsible for packing proteins from the rough endoplasmic reticulum into membrane-bound vesicles which then trans locate to the cell membrane. At the cell membrane, the vesicles can fuse with the larger lipid bi layer, causing the vesicle contents to either become part of the cell membrane or be released to the outside.
Explanation:
multicellular organisms thus have the competitive advantages of an increase in size without it's limitations
An average person could be conscious or are able to live without eating for about thirty days. Though what's more important is that the person is having water because water is very vital and essential to the body for it is the most abundant component that could be found in a person's body. Without it, the person without eating and has no water intake could only take him or her three days.
