The squid in this photograph contains a colony of Vibrio fischeri bacteria, which only luminesce while living within a squid. How is this behavior beneficial for V. fischeri bacteria?
a. Bioluminescent squid are more visible to free-floating V. fisheri bacteria, allowing them to join the colony.
b. Bioluminescent squid attract specific predators, allowing V. fischeri colonies to spread more rapidly.
c. Bioluminescent squid are less likely to be consumed by predators, protecting V. fischeri’s source of food.
d. Bioluminescence within squid provides ample light for V. fischeri to synthesize glucose via photosynthesis.
c. Bioluminescent squid are less likely to be consumed by predators, protecting V. fischeri’s source of food.
You might also like to view...
In the life cycle of a typical cnidarian, which of the
following is free-swimming? a. medusa b. polyp c. planula d. medusa and planula e. all of these
Long-lasting pesticides such as DDT
a. are target-specific. b. are the most effective control over pests. c. build up in concentration as they pass up a food chain. d. break down after the organism that receives the pesticide dies. e. do all of these.
Which of the following would most likely diffuse across a synapse?
a. insulin b. NO c. histamine d. acetylcholine e. prostaglandins
Children with DiGeorge Syndrome are born without a thymus. Discuss, in detail, the repercussions to body defense mechanisms caused by this disease.
What will be an ideal response?