Which of the following levels of the vertebrate nervous system is responsible for the skeletal muscle responses to stimuli (i.e., which system causes these responses)?
A. sensory
B. somatic
C. sympathetic
D. parasympathetic
E. All of these answers are correct
B. somatic
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__________, the ends of eukaryotic chromosomes, shorten with every cell replication event
a. Centromeres b. Telomeres c. Kinetochores d. Primosomes e. Nucleosomes
If two solutions have unequal concentrations of a solute, the solution with the lower concentration is called
A. hypertonic. B. osmosis. C. hypotonic. D. isotonic.
Refer to the following nutrition label to answer the question(s) below
Apple juice has the following nutrition label: Contains 100% Juice Nutrition Facts Serving Size 8 fl oz (240 ml) Servings Per Container 8 Amount Per Serving % RDA Total Fat 0 g 0% Sodium 10 mg 0% Potassium 240 mg 6% Total Carbohydrate 29 g 10% Sugars 28 g Protein 0 g Vitamin A 0% Vitamin C 20% Calcium 2% Iron 6% Not a significant source of other nutrients RDA is based on a 2000 calorie diet. From the nutrition information contained on the label above, you can infer that apple juice would be useful in the treatment of which of the following vitamin deficiencies? A) beriberi B) scurvy C) anemia D) rickets
Which of the following is true of supercoiling?
A. The relaxed form of DNA is more stable and is therefore the preferred form in the cell. B. Most organisms maintain their DNA in a slightly overwound state in order to enhance strand separation during transcription and replication. C. Overwound DNA is in the B form so relaxed DNA has less turns than B-form DNA. D. Most organisms maintain their DNA in a slightly underwound state in order to compact their DNA. E. The relaxed form of DNA can only be maintained if the DNA is a closed circle.