The shrinking of a plant cell membrane away from the cell wall when placed in a hypertonic solution is called a plasmolysis... I don't know if that can be of any help :)
Acid-laden ingesta flows out of the stomach, into the small intestine. Acid in the small intestine stimulates secretion of the hormone secretin<span> from endocrine cells in the intestinal epithelium.</span>
Organ systems are made up of tissues which are made up of cells.
Hopefully that helps and if u need a brief explanation about that just text me.
Answer:
Life Processing I Learnes this last year in 7 grades
DNA structure. DNA is made up of molecules called nucleotides. Each nucleotide contains a phosphate group, a sugar group and a nitrogen base. The four types of nitrogen bases are adenine (A), thymine (T), guanine (G) and cytosine (C).