Pheromones
a. are social signals.
b. are detected by the vomeronasal organ in reptiles
and most mammals.
c. may serve as sex attractants.
d. are not detected or responded to by humans.
e. include all EXCEPT “are not detected or
responded to by humans.”
Answer: e
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The element(s) that have proven useful for stable isotope studies are
A) carbon. B) nitrogen. C) sulfur. D) carbon, nitrogen, and sulfur.
Which of the following best describes how cheetahs are adapted to deal with the heat generated by their extreme sprint speeds?
A. They can store up to 60 times the heat generated at rest, but only for short periods. B. They can store up to 60 times the heat generated at rest for long chases. C. They can store about twice the heat generated at rest for long chases. D. They can store up to 100 times the heat generated at rest, but only for short periods. E. They can store about 20 times the heat generated at rest for long chases.
Fossil fuels are the result of buried organisms where low oxygen levels existed
Indicate whether the statement is true or false.
Aequorin, a protein produced by jellyfish and ctenophores, can be used to detect the release of Ca2+ ,
an important control element in many eukaryotic cells, into the cytosol by
a. releasing a burst of light. b. depolarizing the cell membrane. c. causing a conformational change in the shape of G proteins. d. phosphorylating tyrosine. e. More than one answer is correct.