Which is true of the light reaction of photosynthisis

What does homeostasis means in biology?

The eruption of a nearby volcano causes a prairie ecosystem to receive a lot less sunlight.which of these is the most likely effect on the ecosystem? a-an increase in biodiversity. b-an increase in immigration to the area. c-a decrease in available water. d-a decrease in plant growth.

Name the plastid and pigment likely to be found in the cells of (a) petals of sunflower (b) ripe tomato.