Clostridium botulinum and Bacillus cereus are important disease-causing microorganisms of food which cause ________.
A. cancers
B. infections
C. intoxications
D. birth defects
Answer: C
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During both CAM and C4 photosynthesis, what is the role of the PEP carboxylase enzyme?
A. to create ATP B. to create HCO3 C. to create 3-carbon organic acids D. to create 4-carbon organic acids
Which type of trait is more valuable in determining the evolutionary relationship between two organisms?
A. derived B. ancestral C. Both traits are equally valuable in determining the evolutionary relationship between two organisms. D. Neither trait is useful in determining the evolutionary relationship between two organisms.
Which of the following statements about the nucleus is NOT true?
A. The nucleus stores the coded instructions for making the cell's proteins B. The nucleus usually contains a nucleolus region which is where ribosome assembly begins C. The nucleus us the site of protein assembly D. The nucleus us surrounded by a nuclear envelope that lets materials in and out
The common basilisk lizard will run across water on its hind legs in an erect position when startled by predators. This lizard has large feet and flaps of skin along its toes. What properties of water allow this lizard to walk on water?
A. Polar molecules are attracted to ions and polar compounds, making these compounds soluble. B. Hydrogen bonds absorb heat when they break and release heat when they form. This helps to minimize temperature changes. C. Hydrogen bonds hold water molecules together; many hydrogen bonds must be broken for water to evaporate. D. The surface tension created by hydrogen bonds is greater than the weight of the lizard initially.