Food chain show energy transfer between organism the size of a food chain can very yet there is a limit to the number of levels that a food chain can reach why is there a limit don't be number of levels that a food chain can reach

Use the drop-down menu to match the following definitions to the corresponding terms. the total variety of organisms that live in the biosphere a group of organisms that breed and produce offspring that can breed all of the biotic and abiotic factors in an area

About how many years does it take for one cycle of surface water to become deep water and then surface water again in the oceans? 101001,000

Where does the esophagus lead to in a frog?