Which of the following is a coding RNA?
A. small RNA
B. mRNA
C. large RNA
D. rRNA
E. tRNA
Answer: B
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Why are anionic nutrients generally mobile in soils, and thus easily leached, while cationic nutrients are relatively immobile?
A) Anions readily form crystals while cations do not B) Cations interact with clay particles and organic materials C) Cations have a stronger tendency to aggregate D) Anions are repelled from the surfaces of living roots
The algal group most like green plants is the:
a. Chlorophyta b. charophytes c. brown algae d. dinoflagellates e. red algae
You are explaining the causes of smoker's cough to a client, including altered function of the cilia in the lining of large respiratory passages. Which of these is true
A. Toxins in cigarette smoke irritate nerves under the cilia, causing a cough. B. Smoking damages the cilia, rendering them unable to sweep mucus out of the respiratory passages, resulting in coughing. C. Smoking causes the cilia to produce more mucus, resulting in coughing. D. Cigarette smoke causes an overgrowth of cilia, leading to cough
What is the function of immersion oil?
A. Increases light refraction and improves resolving power B. Increases light refraction and decreases resolving power C. Decreases light refraction and decreases resolving power D. Decreases light refraction and improves resolving power