C. Cell membrane
Hope this helps
If a cell is placed in a hypertonic solution, water will leave the cell, and the cell will shrink. In an isotonic environment, the relative concentrations of solute and water are equal on both sides of the membrane. ... When a cell is placed in a hypotonic environment, water will enter the cell, and the cell will swell.
Answer:
The relationships that organisms have with one another are an important part of the balance among species within ecosystems. Which type of symbiotic relationship occurs when ecological niches overlap and multiple organisms seek the same resources?
Competition
Explanation:
Competition entails when ecological niche overlaps and many organisms seek for the same resorces hence leads to competition and overcrowding.
The hunter gatherer are wandering food collectors.
The hunter gatherer affected their environment by setting fire to prairies. They do this in order to have open fields that will be convenient for their hunting activities. Hunter gatherer brought about extinction of many big animals due to over hunting.
Gastrin; major activities: Stimulates gastric acid secretion and proliferation of gastric epithelium