According to the sliding-filament model of muscle contraction, a sarcomere contracts when its ________
A) thick filaments slide across the ends of the sarcomere
B) thin filaments slide across the ends of the sarcomere
C) thin and thick filaments slide further away from each other
D) thin and thick filaments slide past each other to get closer together
D
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Most fungi require __________ and are therefore __________
a. carbon dioxide; aerobic b. carbon dioxide; anaerobic c. oxygen; aerobic d. oxygen; anaerobic
The longest wavelength of visible sunlight is:
a. Blue b. Violet c. Red d. Yellow
Explain the flow of water in the global water cycle. What will be an ideal response?
Assume that a trait is caused by the homozygous state of a gene that is recessive and autosomal. Nine percent of the individuals in a given population express the phenotype caused by this gene
What percentage of the individuals would be heterozygous for the gene? Assume that the population is in Hardy-Weinberg equilibrium.