What are the primary cells of adaptive immunity?
What will be an ideal response?
Lymphocytes
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Studies have shown that in the flowering plant Arabidopsis whether or not a root epidermal cell develops a root hair is
determined ____.
a. by the distance of the cell from the root tip b. from the timing of cell division c. by positional information from cells of the root cortex d. shortly after the eight-cell embryo stage e. by the direction of cell division
Of the following. the two that are most likely examples of endogenous infections are _____ and ______
a. and HIV infection from unprotected sex b. a measles infection from contact with a contagious individual c. a Staphyococcus infection from consuming contaminated food d. a Micrococcus infection resulting from a cut to the skin e. a Staphylococcus infection of a hair follicle
An example of a drupe is an olive
____________________ Indicate whether the statement is true or false.
Groups of tissues that function together form a(n)
A) system. B) individual. C) gland. D) organ. E) organ system.