When imbalances occur in the sex ratio of sexual species that have two sexes (that is, other than a 50:50 ratio), the members of the minority sex often receive a greater proportion of care and resources from parents than do the offspring of the
majority sex. This is most clearly an example of _____. A) sexual selection
B) balancing selection
C) stabilizing selection
D) frequency-dependent selection
D
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Which of the following is an advantage of sexual reproduction?
a. Sexual reproduction is faster than asexual reproduction. b. Individual organisms do not have to seek mates. c. Sexual reproduction promotes genetic variation. d. Sexual reproduction is more energy efficient. e. Individual organisms are protected from harmful mutations.
Where are the olfactory receptor cells located?
What will be an ideal response?
When the production of glucose exceeds what the body needs, it is stored as _____ or used to synthesize fats.
A. urea B. bile C. adipose cells D. glycogen E. amylase
Which of the following is NOT a way that bacteriophages aid pathogens in the human gut?
a. lysing pathogens before they can cross the mucous barrier b. transferring antibiotic resistance genes by transduction c. transferring antibiotic resistance genes by lysogeny d. transferring virulence genes by lysogeny