Where are the villi located?

A. In the esophagus
B. In the small intestine
C. In the large intestine
D. In the stomach


Answer: B

Biology & Microbiology

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Oocytes are produced in which of the following structures?

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Over time, cancerous cells typically lose the cell adhesion molecules embedded in their plasma membrane. Loss of

these molecules is best associated with which of the following traits of cancer cells?

a. increased rate of cell division b. production of new proteins c. angiogenesis d. migration to new locations in the body e. loss of chromosomes

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The atomic number of an atom is the number of

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Rotenone is a poison commonly added to insecticides. Rotenone binds tightly with one of the electron carrier molecules in the electron transport chain, preventing electrons from passing to the next carrier molecule. Insects exposed to rotenone will die

because A) they will no longer be able to perform anaerobic respiration. B) high levels of fermentation products will build up in their bodies. C) they will no longer be able to produce adequate amounts of ATP. D) they will no longer be able to absorb water and will become dehydrated.

Biology & Microbiology