A farm on the edge of the forest ecosystem sprays the crops with insecticide, which kills the insects eating the crops. Some of the insecticides also gets on some of the caterpillars in the ecosystem
mentioned in the energy pyramid. Half of the caterpillars in the ecosystem die. How will that affect the
plant, chameleon, snake, and mongoose populations?

for  example, forests have higher evapotranspiration than other ecosystems,  such  as grasslands, because of their deeper roots and greater leaf area. thus forests have a net moistening effect on the atmosphere and become a moisture source for downwind ecosystems.

there are no options but this may your question,

leaves enable photosynthesis to occur. photosynthesis is the process by which leaves absorb light and carbon dioxide to produce glucose (food) for plants to grow. leaves are adapted to perform their function, eg they have a large surface area to absorb sunlight.

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