1. Why is the crew unable to collect many specimens on the day following Easter Sunday?
(a) Because the local police arrest Tex for not wearing a t-shirt all the time.
(b) Because the tide does not go very low, making it difficult to collect species in general.
(c) Because the locals will not allow them to take anything from their ocean.
(d) Because Steinbeck and Ricketts get into a fight, making it too awkward to do any collection.

2. What is the greater purpose for which the author wants to use his observations of the activities of the biological creatures?
(a) To improve the way people look at biological creatures.
(b) To increase the public's awareness on marine life in Mexico.
(c) To understand and improve the human species.
(d) To improve the laws and regulations regarding sea expeditions.

3. What does Steinbeck think about the various descriptions they have read of Cabo San Lucas?
(a) No two descriptions of Cabo San Lucas are alike.
(b) Descriptions were very creative, as there was really nothing much to say about Cabo San Lucas.
(c) Descriptions were exaggerating and that the place is overrated.
(d) Descriptions of Cabo San Lucas did not capture the abundance of marine life in the area.

4. What does Steinbeck lament about that is in connection with persistence of beliefs and actual happenings?
(a) That a good hypothesis can blind a person to alternative theories and even to actual data that could disprove it.
(b) That actual happenings are always distorted to give way to more controversial beliefs.
(c) That persistence of beliefs can actually lead to actual happenings.
(d) That actual happenings are actually the basis of many persistent beliefs.

5. What is interesting about the bonito and other fish that caught Steinbeck and Ricketts' attention?
(a) They swim opposite the sea current.
(b) Their colors are different from when they are alive to when they are dead and preserved.
(c) They change their colors as the sun shines on them.
(d) They swim in groups of twelve.