Which of the following would be an indication of kidney failure?
A. dilute urine
B. uric acid in the urine
C. urea in the urine
D. salts in the urine
E. large amount of protein in the urine
Answer: E
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Water distribution systems contain
A) very few bacteria or other microorganisms. B) biofilms that may harbor opportunistic pathogens. C) numerous grazing protists that consume bacteria. D) biofilms that may harbor opportunistic pathogens and numerous grazing protists that consume bacteria.
Sieve tubes are different from vessel members
because they a. do not have nuclei. b. are not connected to each other. c. are alive at maturity. d. conduct minerals. e. fit all of these descriptions.
The sperm and its DNA enters the egg through simple diffusion through the egg plasma membrane.
Answer the following statement true (T) or false (F)
Which of the following are true statements about the carbon cycle? (Check all that apply.)A) Carbon and nitrogen fixation are both facilitated by microbes.B) Burning of gasoline is a contributor to the current imbalance in the carbon cycle.C) Replacing rainforest with farms decreases atmospheric CO2 levels.D) In water, inorganic carbon exists in two different forms, both of which can be used by autotrophs.E) Carbon cycles locally.
What will be an ideal response?