Course
General Biology
Study Pack
Set 54 Biodiversity And Communities
Question 1
(Multiple Choice)
Free
Some birds follow moving swarms of army ants in the tropics. As the ants march along the forest floor hunting insects and small vertebrates, birds follow behind and eat any insects or small vertebrates that had flown jumped away from the moving swarm. Which of the following species interactions does this example demonstrate between the birds and the ants?
A) consumption
B) commensalism
C) parasitism
D) mutualism
Answer
Question 2
(Multiple Choice)
Free
Use the figures to answer the following question. 
In this experiment, Balanus balanoids was removed from the habitat shown on the left, obtaining the results shown on the right.
Which of the following statements is supported by the results of this experiment?
In this experiment, Balanus balanoids was removed from the habitat shown on the left, obtaining the results shown on the right.Which of the following statements is supported by the results of this experiment?
A) B. balanoids can survive only in the lower intertidal zone because it is unable to resist desiccation.
B) B. balanoids is inferior to C. stellatus in competing for space on rocks lower in the intertidal zone.
C) When the two species of barnacles compete with each other, both species still occupy low and high tide areas.
D) Competition with B. balanoids prevented C. stellatus from occupying the lower tide region of its fundamental niche.
Answer
Question 3
(Multiple Choice)
Free
Use the figures to answer the following question. 
This experiment by Connell was best designed to investigate which of the following?
This experiment by Connell was best designed to investigate which of the following?A) character displacement in the color of barnacles
B) habitat preference in two different species of barnacles
C) how sea-level changes affect barnacle distribution
D) competitive exclusion and distribution of barnacle species
Answer