Not all Protists are unicellular so answer choice 4 is false.
Answer:
1. Providing structure --> Collagen makes skin strong yet flexible.
2. Maintaining homeostasis --> Insulin controls the concentration of sugar in the blood.
3. Fighting Disease --> IgA prevents the buildup of viruses and bacteria in the gut.
4. regulating chemical reactions --> Pepsin works in the stomach to speed up the breakdown of food.
I believe the correct answer from the choices listed above is option D. The sentence that best explains why the plant grows more slowly would be the <span>plant has less cholorphyll to produce energy. Since it can be found in the leaves of the plant. Hope this answers the question.</span>
The DNA has to replicate before mitosis to keep the number of chromosomes consistent. Hope this helps.
Answer:
both of the models have enzymes that bind and the binding is covalent
Explanation: