The viral structure responsible for recognizing specific host cells is –A bacteriophage. Genetic material.

A retrovirus.

A surface protein.

When organisms are classified ,they are given a two part name

In general, characteristics that an organism survive and reproduce become more common over time. what mechanism of evolution causes this?

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