Desmosomes are a type of ____
a. anchoring junction
b. cell adhesion molecule
c. tight junction
d. intermediate filament
e. gap junction
A
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Harmful introduced species usually come into an area by:
a. human beings. b. the species themselves. c. hurricanes. d. floods. e. parasites.
Which of the following occurs during prophase?
A) Chromosomes line up on the midline of the cell. B) The nuclear envelope forms. C) Sister chromatids separate. D) The mitotic spindle begins to form.
Individuals best suited to their environment survive and reproduce most successfully. This idea is known as...
a) descent with modification b) struggle for existence c) survival of the fittest d) common descent
Which of the following statements about the liver is false? a. The liver converts urea to ammonia, a less toxic compound
b. Fat-soluble compounds such as vitamins D and A are stored in the liver. c. The liver converts excess carbohydrates and proteins to fat. d. The liver detoxifies alcohol.