1. What are dry-balls?
(a) They are the medicines given to the expedition party by the locals.
(b) They are the biologists who study dead, preserved animals.
(c) They are the dried coconut husks used by the local children to play ball.
(d) They are the dried cotton balls brought to sea as part of the medicine kit.

2. What is Tex's outstanding characteristic?
(a) He loves diesel engines.
(b) He is afraid of the water.
(c) He loves to sleep in the daytime and do chores at night.
(d) He cannot make a left turn.

3. How does Tex see diesel engines?
(a) As pure, logical, perfect mechanical entities.
(b) As expensive vessels not fit for sea travel.
(c) As abhorring inventions.
(d) As toys which can be experimentes on.

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

5. What do members of the party feel when they are the one manning the wheel?
(a) The team members are excited, causing them to make wrong turns.
(b) The team members feel some pressure when they are manning the wheel, especially when Tony is watching.
(c) The team members feel happy and contented, and would like to remain at sea, when they are manning the wheel.
(d) The team members feel a but sad and melancholic listening to the sea breeze.