This is because their cells are usually hypertonic to the freshwater they swim in. Their cells will always have dissolved osmotically-active molecules that are critical for cell function. Therefore, osmotically, water will move from the freshwater to the inside of the cells. If not regulated, the cells would swell and lyse. Therefore excess water has to be actively pumped out to maintain cell homeostasis.
Answer:
Chemical properties are very useful in identifying substances. However, unlike physical properties, chemical properties can only be observed as the substance is in the process of being changed into a different substance.
When that situation happens then it can stimulate a cytotoxic T cell. This types of cells are the ones directly responsible for cellular immunity. Cytotoxic T cells can attack target cells by secreting a cytokine that triggers apoptosis which is <span>the death of cells which occurs as a normal and controlled part of an organism's growth or development.</span>
C...the key is that they are photosynthetic...so they produce oxygen (like plants)!
Answer:
the genetic constitution of an individual organism.
investigate the genetic constitution of an individual organism.
Explanation:
