Which of the following types of caudal fins is flexible and useful in accelerating and maneuvering at slow speeds?
A) Forked caudal fin
B) Heterocercal caudal fin
C) Lunate caudal fin
D) Rounded caudal fin
E) Truncate caudal fin
Question 2
The diversity pattern of reef-building coral observed in today's oceans is related to which of the following?
A) Increased nutrients provided by upwelling
B) The distance from Earth to the Sun
C) The El Nino Southern Oscillation
D) The mass extinction that killed the dinosaurs
E) The past positions of the continents