An ecologist made this statement during a presentation, "We have everything we need, but if we lose the sun, we will not survive long." Which statement best
explains what the ecologist meant by that statement?

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