This foramen lies between the temporal and occipital bones on the inferior surface of the skull. A major vein and several cranial nerves pass through it.
What will be an ideal response?
jugular foramen
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Which of the following is an amine hormone important in the stress response in vertebrates?
A. dopamine B. melatonin C. cortisol D. epinephrine E. serotonin
Which of the following statements best defines an altruistic act?
A. benefits the performer and another individual B. benefits another individual at some cost to the performer C. benefits another, related individual at some cost to the performer D. imposes a cost on the performer and another individual E. imposes a cost on the performer without benefiting another individual
While you are riding the ski lift up to the top of the mountain on a very cold day you start to shiver involuntarily. You know that the shivering is your body?s attempt to help regulate your body temperature and is an example of what type of mechanism?
A. sensitivity B. homeostasis C. energy utilization D. evolutionary adaptation
Suppose a population splits into two descendant populations prior to any evolution of dark coloration, then splits again after the evolution of dark coloration. Which of the following is true?
a. Changes in coat color tell us something about evolutionary history. b. Using these analogous traits in building an evolutionary tree might cause us to incorrectly infer a closer phylogenetic relationship between these species than actually exists. c. In this case, dark coloration is not only a derived trait but it is also shared by two populations because it is a homologous trait. d. All but B are true.