If we can't see air can fish see water?

Interferons play a vital role in the immune system why are interferons so important?

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

How are primary producers important to the alligator's energy supply