Which of the following muscle fiber types would you expect to find in a marathon runner?
What will be an ideal response?
Slow-twitch
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Which of the following methods can plants use to acquire immobile nutrients (e.g., zinc) or nutrients not in readily accessible forms (i.e., the nitrogen in N2)? Select all correct choices
A. Plants can introduce acid-like compounds into the soil. B. Plants can form symbiotic relationships with bacteria. C. Plants can form symbiotic relationships with fungi. D. Plants can introduce protons into the soil.
The Na+/K+ pump transports ____
a. 2 sodium ions in and 2 potassium ions out b. 2 sodium ions in and 3 potassium ions out c. 2 sodium ions out and 3 potassium ions in d. 3 sodium ions in and 2 potassium ions out e. 3 sodium ions out and 2 potassium ions in
Seagrasses are important in all the following except:
a. nutrient recycling. b. providing a habitat for animals. c. stabilizing sediments. d. being consumed by most estuarine herbivores.
The molecule of heredity is usually
A) RNA. B) DNA. C) protein. D) carbohydrate. E) None of the choices is correct.