30 points
what’s missing from this illustration of a food web?

a. second-level consumers
b. producers
c. first-level consumers
d. decomposers

Study the diagram of a cell. which structure is found only in plant cells and functions in the process of photosynthesis? w x y z

What would most likely happen if green plants were exposed to longer days of sunlight? a. the mitochondria would produce less energy . b. the chloroplasts would produce more energy. c. the cell wall would become thicker. d. the vacuoles would quickly shrink.b. the chloroplasts would produce more energy.

Which line in the graph above best illustrates an effect of the carbon dioxide level in the blood on breathing rate before, during and after a period of exercise? 1.b,2.c,3.a,4.d