Atoms that have the same number of protons but differ in their number of neutrons are ________.
Fill in the blank(s) with the appropriate word(s).
isotopes
Atoms that have the same number of protons but differ in their number of neutrons are isotopes.
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Meerkats are small desert mammals that live in groups of 20–50 animals. You observe the behavior of a group of meerkats. Which of the following behaviors would you categorize as examples of reciprocal altruism?
A. Two meerkats take turns grooming each other, each spending about the same amount of time grooming the other. B. One meerkat grooms a second meerkat, who is sleeping. C. One meerkat spends time standing upright on a stump, looking around, while other meerkats forage for food. D. One meerkat spends time sleeping in the burrow after eating, while other meerkats forage for food. E. One meerkat stands in the sun, while the other spends time digging out the burrow.
Which of the following statements regarding Clostridium difficile infection is incorrect?
A. It is the major cause of diarrhea in hospitals. B. It is a colitis that is a superinfection. C. It is associated with disruption of normal biota due to broad-spectrum antimicrobials. D. It is due to ingestion of contaminated, improperly stored, cooked meats and gravies.
Which monomers make up RNA?
a. Nucleotides b. Simple sugars c. Amino acids d. Polymers
The total (gross) number of ATPs produced from glycolysis is estimated to be
A. thirty-six. B. thirty-four. C. two. D. four.