单选题The primary topic of the passage is which of the following?A The origin of bioluminescence in plankton predatorsB The disadvantages of bioluminescence in microorganismsC The varieties of marine bioluminescent life formsD Symbiotic relationships between
题目
单选题
The primary topic of the passage is which of the following?
A
The origin of bioluminescence in plankton predators
B
The disadvantages of bioluminescence in microorganisms
C
The varieties of marine bioluminescent life forms
D
Symbiotic relationships between predators and their prey
E
Hypotheses on the causes of bioluminescence in plankton