A chlorine atom has 17 protons and 18 neutrons. What is its atomic mass?
a. 1 amu
b. 17 amu
c. 18 amu
d. 35 amu
e. 306 amu
d
Biology & Microbiology
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Scientists often study lichens to look at the effects of acid rain. Why?
a. Lichens absorb water directly from air. b. Lichens are located in many diverse environments. c. Lichens can withstand droughts. d. Lichens get water from the area directly beneath trees.
Biology & Microbiology
Which of the following is NOT involved in self
versus nonself recognition? a. complement b. MHC markers c. TCRs d. plasma membranes e. HLA
Biology & Microbiology
The carboxyl group can exist in an ionized form and also in a nonionized form
__________________Indicate whether the statement is true or false.
Biology & Microbiology
Some proteins of the plasma membrane extend across the entire width of the membrane. These have been known to function as?
What will be an ideal response?
Biology & Microbiology