Which of the following processes explains why an individual that has suffered a broken bone and is immobilized for an extended period of time experiences bone mass loss?
a) demineralization
b) muscle atrophy
c) ossification
d) kyphosis
Answer: a) demineralization
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Answer the following statements true (T) or false (F)
1. The majority of the energy produced in aerobic respiration is produced by the Krebs cycle. 2. In glycolysis, a 6-carbon glucose molecule is broken down into two 3-carbon molecules of pyruvic acid. 3. Aerobic respiration is a more efficient method of breaking down glucose than is fermentation. 4. Virulent bacteriophages are responsible for lysogenic conversion. 5. Mutations are always harmful.
Some closely related species do not interbreed simply because the timing of their reproduction differs. What type of reproductive isolation is this?
a. mechanical b. ecological c. temporal d. behavioral e. gamete incompatibility
The M-phase checkpoint ensures that all chromosomes are attached to the mitotic spindle. If this does not happen, cells would most likely be arrested in _____
A) telophase B) prophase C) prometaphase D) metaphase
Microfilaments and microtubleus
What will be an ideal response?