The rusty crayfish is harmful to native species of crayfish because it clear cut the bottom of waterways leaving native species without a food supply t or f

True

Explanation:

An invasive species is the one which competes with the members of the native species for resources when introduced to a new ecosystem.

According to the given situation, a rusty crayfish is harmful to the native species of crayfish. This tells us that rusty crayfish is invasive for native species of crayfish. Thus the native species left without food as there exists competition for food.

explanation:

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.