Variation among organisms is due to mutations
Indicate whether the statement is true or false
TRUE
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Many structures and organs in the body are lined by epithelial tissue, and this layer of tissue
can vary in thickness from a single layer of cells to multiple layers of cells. Based on function, which of the following do you think will have the most cell layers?
a. skin b. lungs c. blood vessels d. both lungs and blood vessels
The original source of genetic variation that serves as the raw material for evolution is ________.
A. mutation B. gene flow C. geographic isolation D. random fertilization
Decompression sickness occurs when which gas forms bubbles in the blood?
a. oxygen b. carbon dioxide c. carbon monoxide d. methane e. nitrogen
Patients with Creutzfeldt-Jacob disease live ________ post diagnosis.
A. 10 to 20 years B. greater than 25 years C. 5 to 10 years D. less than 1 year E. 1 to 5 years