Meeting the needs of the present generation without reducing the ability of future generations to meet their own needs is the goal of
a. sustainability
b. ecology
c. conservation biology
d. sociology
e. biology
a
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Which type of nutrient can pass across epithelial cells without any expenditure of ATP?
A. iron B. calcium C. protein D. fat E. magnesium
Sequencing all the DNA in the fluid that leaks from the bottom of a garbage can is an example of
A) stem cell science. B) gene expression profiling. C) metagenomics. D) DNA profiling.
HeLa cells are
a. normal cells. b. stem cells. c. cancer cells. d. viral-infected cells. e. bacterial cells
Each of the following is true about basal lamina except
A) it serves as a structural support. B) it allows for movement of some small molecules but blocks movement of large molecules. C) it can influence cell migrations in certain areas of the body. D) it contains collagen type IV, proteoglycans, laminins, and entactin. E) it is composed primarily of fibronectin.