Marine Biology - Final Exam Review Questions and Answers | Latest
2026 Update
Q: Keystone species: A. Are found only in the intertidal B. Are primary producers
C. Affect community structure by preying on competitively important prey
species D. Are superior competitors and affect community structure C. Affect
community structure by preying on competitively important prey species Early
dominants in intertidal seaweed succession: A. Are usually not as well defended
chemically as species later in succession B. Inevitably overgrow and outcompete
species that arrive later C. Are resistant to grazing D. Are poor colonizers A. Are
usually not as well defended chemically as species later in succession Which of
the following is not a foundation species?
Answer:
A. A barnacle species that wins out in competition over other species B. An abundant
sea grass species C. A dominant species of cord grass in a salt marsh meadow
, Q: D. A dominant mangrove species in a mangrove forest A. A barnacle species
that wins out in
Answer:
competition over other species
If a disease exterminated all of the sea otters:
A. Competition among species of kelps would be increased
B. Sea urchins would soon greatly decrease in abundance
C. Kelps would soon greatly decrease in abundance
D. All answers are correct C. Kelps would soon greatly decrease in abundance
Corals growing slowly on reefs:
A. Live only on the undersides of other corals
B. Are always overgrown by faster growing corals, so they survive only by high
larval
recruitment
C. Tend to grow tall so as to shade out their neighbors
D. May maintain themselves by aggressive responses toward neighbors D. May
maintain
themselves by aggressive responses toward neighbors
Global warming is likely to affect coral reefs:
A. By decreases in pH, which will reduce calcification
B. By rises in sea level, which may drown some reefs
C. By high temperature stress, which may cause bleaching
D. All answers are correct D. All answer are correct
Invaders may be ecologically compatible with the area they invade but may not
expand in the
target area because:
A. They may be vulnerable to parasites they have never before encountered
B. They may be vulnerable to predators they have never encountered
C. They cannot increase in population size sufficiently to produce a sustaining
population
2026 Update
Q: Keystone species: A. Are found only in the intertidal B. Are primary producers
C. Affect community structure by preying on competitively important prey
species D. Are superior competitors and affect community structure C. Affect
community structure by preying on competitively important prey species Early
dominants in intertidal seaweed succession: A. Are usually not as well defended
chemically as species later in succession B. Inevitably overgrow and outcompete
species that arrive later C. Are resistant to grazing D. Are poor colonizers A. Are
usually not as well defended chemically as species later in succession Which of
the following is not a foundation species?
Answer:
A. A barnacle species that wins out in competition over other species B. An abundant
sea grass species C. A dominant species of cord grass in a salt marsh meadow
, Q: D. A dominant mangrove species in a mangrove forest A. A barnacle species
that wins out in
Answer:
competition over other species
If a disease exterminated all of the sea otters:
A. Competition among species of kelps would be increased
B. Sea urchins would soon greatly decrease in abundance
C. Kelps would soon greatly decrease in abundance
D. All answers are correct C. Kelps would soon greatly decrease in abundance
Corals growing slowly on reefs:
A. Live only on the undersides of other corals
B. Are always overgrown by faster growing corals, so they survive only by high
larval
recruitment
C. Tend to grow tall so as to shade out their neighbors
D. May maintain themselves by aggressive responses toward neighbors D. May
maintain
themselves by aggressive responses toward neighbors
Global warming is likely to affect coral reefs:
A. By decreases in pH, which will reduce calcification
B. By rises in sea level, which may drown some reefs
C. By high temperature stress, which may cause bleaching
D. All answers are correct D. All answer are correct
Invaders may be ecologically compatible with the area they invade but may not
expand in the
target area because:
A. They may be vulnerable to parasites they have never before encountered
B. They may be vulnerable to predators they have never encountered
C. They cannot increase in population size sufficiently to produce a sustaining
population
