L2：
Lecture 2
第一题
What is the lecture mainly about?
AWays that harvester ants forage for food
BThe behavior of harvester ant colonies
CSimilarities between harvester ant colonies and other social insect colonies
DA new method of studying social insect colonies
第二题
How do foragers sense that it is safe to leave the nest?
AThere is a change in the odor of other worker ants.
BThe queen emits a chemical signal.
CPatrollers gather to escort foragers away from the nest.
DPatrollers return unharmed to the nest.
第三题
According to the professor, why is task allocation in harvester ant colonies important?
AIt helps ensure that the colonies grow to a certain size.
BIt allows the colonies to respond to changes in their environment.
CIt ensures that the queen gets enough food to feed her young
DIt protects the colonies from the most dangerous predators.
第四题
How do worker ants decide what specific task they should perform?
ABy learning the queen’s assessment of the colony’s needs
BBy determining what task they can do most efficiently
CBy observing the behavior of patroller ants who have returned to the nest
DBy determining that they have encountered a high rate of ants with a particular scent
第五题
What opinion does the professor express about the conclusions of the research she discusses?
AThey are only partially supported by the glass-bead experiment.
BThey appear to be based on flawed data.
CThey might apply only to harvester ant colonies.
DThey are too general to be of use to other scientists.
第六题
Why does the professor say this:
ATo acknowledge that others might not share her enthusiasm
BTo remind students of her credentials as a biologist
CTo emphasize the importance of being objective
DTo indicate that she was involved in the research
