The basic contractile unit of a muscle is called the:
A. sarcomere.
B. myofibril.
C. muscle fiber.
D. thick filament.
E. Z disc.
A
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Which of the following would be the least likely to impact hearing?
1.damage to the semicircular canals
2.damage to the middle ear bones
3.damage to the cochlea
4.damage to the organ of Corti
Four of the five answers listed below are related by their description of enzyme properties. Select the
exception. a. cofactors b. active sites c. reusable d. substrate e. catalyst
Using the allele frequencies in the table below, what is the probability that a random person would be heterozygous 12/14 for VAW?
What will be an ideal response?
Which statement best describes how overspecialization can affect a species?
A) New adaptations will never occur in a highly specialized species. B) Highly specialized adaptations in a species increase the likelihood of extinction if the environment changes. C) Highly specialized adaptations enable a species to live anywhere on Earth. D) If the habitat around a specialized species changes, the species always evolves new specialized adaptations. E) Highly specialized adaptations are rare in species that occupy a very limited geographic range.