1. Plants have chlorophyll, a green pigment necessary for photosynthesis
2. Their cell walls are made sturdy by a material called cellulose
3. They are fixed in one place (they don’t move)
Answer:
to protect it from utrlavilot light
50%from one, 50% from the other
I would say D, because enzymes are chemical reactions, and heat can trigger a reaction between two dormant chemicals, and when the heat runs out, the enzyme will stop working.