Describe at least three ways in which viruses, bacteria, protists, or fungi are important in your daily life.

Which of the following describes a difference when gram-positive bacteria are compared to gram-negative bacteria?

Imagine a self-reactive t cell that has not undergone clonal deletion in the thymus (that is to say, it has escaped central tolerance). if it encounters self antigen in the absence of an infection or inflammation, what will happen to this self-reactive t cell? (select two answers) (a) the t cell undergoes clonal expansion. (b) the t cell gains effector functions. (c) the t cell undergoes apoptosis. (d) the t cell becomes activated. (e) the t cell becomes anergic.

During the process of blank and molecules such as a glucose must use a protein channel to cross through a cell membrane