Amolecule of one atom of carbon and two atoms of oxygen would be written co2 co2 co2 2co

When water freezes, it . contracts expands

Describe how a student should adjust the microscope to see the cells on a slide more clearly?

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