Sumich Marine Biology, 8E: Study Quizzes

Fish

Introduction to the Biology of Marine Life, Eighth Edition, James L. Sumich and John F. Morrissey

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Study Quizzes

Please read each question and select your answer from the choices provided. You must complete all of the questions in order to view your results. At the end of each exam, you have the option to e-mail your results to your instructor.

1: Which of the following is false about coral-reef ecosystems?
	A: Water temperatures are about 18 degrees Celsius.
	B: They need clear water and light to survive.
	C: They are generally not found in river mouth areas.
	D: The surrounding waters are nutrient rich.

2: Atolls are:
	A: associated with coastlines
	B: pieces of barrier reef
	C: long and linear
	D: submerged volcanoes

3: Black-band disease is caused by a:
	A: nematode
	B: virus
	C: cyanobacterium
	D: ciliate

4: Which of the following is the type of larva formed by most corals?
	A: veliger
	B: trochophore
	C: blastula
	D: planula

5: Extending behind the algae ridge to an island is a:
	A: groove
	B: reef flat
	C: buttress
	D: atoll

6: Darwin made great contributions in terms of our knowledge of coral reef formation.
	A: TRUE
	B: FALSE

7: Mass spawning events have been observed in species of stony corals and calcareous green algae.
	A: TRUE
	B: FALSE

8: Sedimentation and nutrification are the most common anthropogenic causes of coral mortality.
	A: TRUE
	B: FALSE

9: Sea cucumbers of the genus Actinopyga have five teeth on their anal margin.
	A: TRUE
	B: FALSE

10: Hawksbill sea turtles have been described as having a "diet of glass" because they eat:
	A: broken bottles
	B: siliceous sponges
	C: diatoms
	D: crystalline sea urchins

11: The only herbivorous marine mammals known are the:
	A: sea otters
	B: seal and sea lions
	C: manatees and dugong
	D: dolphins and whales

12: Temperature-dependent sex determination in sea turtles results in:
	A: only females hatching from colder eggs
	B: only males hatching from warmer eggs
	C: only females hatching from warmer eggs
	D: both A and B

13: In 2000, the Global Coral Reef Monitoring Network estimated that _______ % of the Earth's corals are now dead.
	A: 14
	B: 27
	C: 45
	D: 72

14: Increased sedimentation on coral reefs (after a period of deforestation on land, for example) is beneficial to the reef in that it fills in cracks and fissures to make the reef more stable.
	A: TRUE
	B: FALSE

15: Bleaching, a well-studied cause of coral mortality, may be the natural, even beneficial, response of corals to rapidly changing environmental conditions.
	A: TRUE
	B: FALSE

16: Pearlfishes enter the cloaca of a sea cucumber and live inside this echinoderm.
	A: TRUE
	B: FALSE

17: The sexual system that maintains separate male and female sexes at all times is known as gonochorism.
	A: TRUE
	B: FALSE

18: The coral goby, Paragobiodon, of the Indo-Pacific changes sex in both directions (male to female or female to male), depending on social circumstances.
	A: TRUE
	B: FALSE

19: Sea snakes possess only one lung, that extends far into the rear of their body and may act as a swim bladder.
	A: TRUE
	B: FALSE

20: Leatherback sea turtles are the smallest of the seven known species of sea turtles.
	A: TRUE
	B: FALSE

21: The green sea turtle is the only marine turtle that is carnivorous (all others are herbivores).
	A: TRUE
	B: FALSE

Optional: Enter your name and your instructor's E-mail address to have your results E-mailed to him or her.
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