In which of the following aquatic ecosystems are both littoral and benthic zones likely?

During the process of two rails or sides break apart and attract new nucleotide bases to form a new and complete strand.

Ineed to get this test done which of the following statements is correct in hour our immune system responds to a potential pathogen? a.) the skin will be the first line of defense, and then the many phagocytes in the bloodstream will attempt to consume the possible pathogen. b.) b cells will start reading the antigen code immediately and call t cells to assist in destroying the pathogen. c.) the adapted immune system will call on the innate immune system to destroy the pathogen. d.) the t-cells in the adapted immune systems are the first to recognize the pathogen

Knowing the importance of the essential elements, why would someone chose a diet that does not address all of them?