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

Which of the following are not matched correctly? cd8+: directly destroy infected or cancerous cells t reg cell: reduce the adaptive response once threat passes t l: activate cellular branch (cytotoxic t cells, macrophages, nk cells) t 2: stimulate b cells to make antibodies t (cd4+): mhc i