#Question id: 3275
#SCPH28 | Zoology
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 ________.
#Question id: 3276
#SCPH06 I Botany
Which of these conditions are always true of populations evolving due to natural selection?
Condition 1: The population must vary in traits that are heritable.
Condition 2: Some heritable traits must increase reproductive success.
Condition 3: Individuals pass on most traits that they acquire during their lifetime.
#Question id: 3276
#SCPH28 | Zoology
Which of these conditions are always true of populations evolving due to natural selection?
Condition 1: The population must vary in traits that are heritable.
Condition 2: Some heritable traits must increase reproductive success.
Condition 3: Individuals pass on most traits that they acquire during their lifetime.
#Question id: 3277
#SCPH06 I Botany
Which of the following describes the most likely order of events in allopatric speciation?
#Question id: 3277
#SCPH28 | Zoology
Which of the following describes the most likely order of events in allopatric speciation?
#Question id: 3278
#SCPH06 I Botany
What does the biological species concept use as the primary criterion for determining species boundaries?