Which of the following processes is incorrectly matched to its description?
A) Pinocytosis: Imports dissolved substance using small vesicles
B) Receptor-mediated endocytosis: Uses specific binding between structures on the plasma membrane binding to ligands
C) Exocytosis: Exports materials into a cell
D) Endocytosis: Imports materials into a cell
E) Phagocytosis: Imports undissolved substances but not whole cells or viruses
Answer: E
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When looking at the carbon isotopes present in the atmosphere, scientists determined that 13C and 14C levels had decreased over time. What did researchers conclude from these observations? Select all that apply
A. that volcanic activity is responsible for increased atmospheric CO2 B. that the burning of forests is responsible for increased atmospheric CO2 C. that the use of fossil fuels is responsible for increased atmospheric CO2 D. that increased plant/animal respiration is responsible for increased atmospheric CO2
In the biological sciences, the null hypothesis is usually rejected if the P value is _____
A. Greater than 1 B. Less than 0.30 C. Less than 0.95 D. Less than 0.05 E. Less than 1
In the human body, which substrate would protease act upon?
A) protein B) lipids C) lactose D) sucrose
Four __________ glands make a hormone that acts on bone and kidney cells and raises blood calcium level.
Fill in the blank(s) with the appropriate word(s).