Which of the following statements is TRUE?
a. Once a person reaches maturity, cell division stops
except to repair wounds.
b. Cell division in an adult signifies cancer.
c. Some specific cells throughout the body retain the
ability to divide and replace themselves.
d. Mitosis always produces haploid cells.
e. All cells retain the ability to divide even after the
organism reaches maturity.
Answer: c
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Which of the following would be considered density-independent factors that could affect the growth of a population?
A. predation B. droughts C. parasitism D. resources E. disease
________ states that depressed individuals are characterized by a negative cognitive tried, which shows their tendency to have negative views of themselves, their world, and their future.
Fill in the blank(s) with the appropriate word(s).
A nosocomial infection is
A) Always present but inapparent at the time of hospitalization. B) Acquired during the course of hospitalization. C) Always caused by medical personnel. D) Only a result of surgery. E) Always caused by pathogenic bacteria.
These skin cells fight infections: ________
A) fibroblasts B) macrophages C) melanocytes D) neuroglia