The evolution of the blood clotting mechanism is likely explained by ____
a. constant mutations
b. direct response to environmental factors
c. gene duplication
d. sharing of gene pools between species
e. inbreeding
ANSWER: c
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What is the main reason for why there has not been an increase in the production of new nuclear power plants?
a. the high cost of building b. the high cost to produce electricity c. lack of nuclear fuels d. safety concerns e. high greenhouse gas effects
Joan and her doctor notice a suspicious lump in her breast. Joan also has a family history of breast cancer. Which of the following is not a likely next step as they work to determine the cause of the lump?
A. performing a diagnostic mammogram B. genetic testing for mutations in the BRCA1 gene C. taking a biopsy of the lump to look for the presence of cancer cells D. performing a mastectomy to remove all breast tissue in that breast
MRI is a type of imaging technique that can detect tumor consistency
Indicate whether the statement is true or false
A type of active transport is
A. diffusion B. membrane assisted transport C. osmosis D. facilitated transport (movement from high to low concentration requiring the assistance of a protein).