Genetic markers that distinguish a self cell from a foreign invader are typically ________.
A. polysaccharides
B. proteins or glycoproteins
C. DNA or RNA
D. lipids or lipoproteins
Answer: B
Biology & Microbiology
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Which of the following would be the best strategy to prevent the spread of yellow fever and dengue fever into the southern United States?
A) mosquito avoidance and eradication B) vaccination C) monitoring bird populations D) tick avoidance
Biology & Microbiology
Which of the following would NOT be true of
CAM plants?
a. they fix carbon only once b. they live in a desert environments c. they fix carbon during the day and at night d. they open stomata only at night e. they do not use rubisco
Biology & Microbiology
How many bones are in the human body?
A) 203 B) 206 C) 300 D) 308
Biology & Microbiology
A muscle will ________ if levels of calcium and potassium decrease in the blood
Fill in the blank(s) with correct word
Biology & Microbiology