Muscles involved in control of posture are primarily composed of slow-twitch fibers
A. true
B. false
A
You might also like to view...
Which of the following best describes Mendel’s hybridizations?
a. the mating of two true-breeding individuals that have similar forms of the trait of interest b. the mating of two true-breeding individuals that have different forms of the trait of interest c. the mating of offspring back to one or both of their parents d. the mating of dominant-expressing organisms with homozygous recessive organisms
In some plants, companion cells become modified into phloem cells that facilitate the short-distance
transport of various organic solutes from the symplast into the apoplast.
Indicate whether the statement is true or false.Which of the following describes the dikaryotic stage of a fungal life cycle in genetic terms?
a. 2n b. n + n c. n d. 2n + n
Natural selection has favored the dark form of the peppered moth in areas subject to severe air pollution, perhaps because on darkened trees, moth-eating birds see them less easily. As pollution abated, the light forms increased in the population because
A. birds ate more light moths. B. light moths were able to produce more offspring than dark moths. C. light moths had lower fitness than dark moths. D. light moths were more genetically variable than dark moths.