What determines the carrying capacity of an ecosystem? a. the number of different types of organisms in an ecosystem b. the amount of available resources c. the square mileage it encompasses d. the ratio of biotic to abiotic factors

(1) which phrase describes an important agricultural change that occurred during the mississippian period? (a) first cultivation of wild grains (b) expansion of marsh elder farming (c) spread of corn agriculture (d) gathering of nuts and berries (2) which group of native americans use northwestern arkansas as it’s traditional hunting grounds? (a) osage (b) quapaw (c) woodland (d) caddo

Explain how a convection current in the earth is formed.

For one week be an inventor and write down ideas for products or services that you think should be produced