Which of the following is an inorganic charged

particle found in soil?



a. humus
b. clay
c. sand
d. silt
e. all of these are charged inorganic soil
particles


B

Biology & Microbiology

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Nongonococcal urethritis may be caused by the protozoan ________

A) Chlamydia trachomatis B) Neisseria gonorrhoaea C) Haemophilus ducreyi D) Trichomonas vaginalis

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Within animal cells, glycolysis and gluconeogenesis must not occur at the same time. Therefore, regulation is important. Which of the following molecules is least important in the regulation of glycolysis and gluconeogenesis?

A) NADH B) fructose-2,6-bisphosphate C) ATP/ADP D) acetyl CoA E) phosphofructokinase-2

Biology & Microbiology

What does it mean that the genetic code is

“highly conserved”?

a. it is almost universal and has not changed in millions of years b. it resists modification from environmental mutagens c. organisms can only use it a certain number of times d. all organisms and organelles - without exception - have the exact same genetic code e. the products of the genetic code - proteins - are almost the same in all organisms

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As you move south from the equator to the south pole, animal and plant diversity

A) increase. B) decrease. C) are not affected by latitudinal changes

Biology & Microbiology