Question 1

What are some of the adaptations exhibited by organisms living in estuaries? How do pelagic species use estuaries to their advantage?

Accepted Answer

The answer of What are some of the adaptations exhibited...

Question 2

The variety of appearances and protective demonstrations associated with organisms on the coral reef is a testament to the intense struggles in the ecosystem.

Accepted Answer

The statement is true as organisms on the coral reef have developed various physical appearance and behavioral adaptations to survive in a highly competitive and challenging ecosystem, which includes protection against predators, competition for resources, and environmental stressors such as fluctuations in temperature, salinity, and pH levels.

Question 3

What happens to climax communities after a disruption? How do these communities re-establish themselves after a disruption like a tropical storm? What is this process called?

Accepted Answer

The answer of What happens to climax communities after a...

Question 4

What challenges are faced by coral reefs today?  What is the advantage of living in the tropical ocean which contains few nutrients? Hint: include reference to the National Geographic segment about the Southern Line Islands

Accepted Answer

The answer of What challenges are faced by coral reefs...

Question 5

Biodiversity is the role of species in a given area.

Accepted Answer

Biodiversity is the variety of species in a community. Biodiversity can vary with communities. For example, coral reefs are highly diverse. Information can be found in the section Communities Consist of Interacting Producers, Consumers, and Decomposers.

Question 6

In a stable community, multiple populations can occupy the same role to ensure biodiversity.

Accepted Answer

Stable communities only have one population filling each niche. Populations that are more effective win the competition for a particular role in a community. Information can be found in the section Communities Consist of Interacting Producers, Consumers, and Decomposers.

Question 7

Marine communities evolve more rapidly than terrestrial communities.

Accepted Answer

Terrestrial communities evolve at faster rates than marine communities. Environmental factors do not change as quickly in the ocean as they do on land. Information can be found in the section Marine Communities Change as Time Passes.

Question 8

More than half of the animal species, marine and terrestrial, are not considered to be free-living.

Accepted Answer

This statement is true. More than half of the animal species on Earth are said to be parasitic, meaning they live off another organism, and therefore are not considered free-living.

Question 9

What impact does environmental resistance have on a population? What kind of population distribution patterns occur in communities?

Accepted Answer

The answer of What impact does environmental resistance have on...

Question 10

What are the types of symbiotic relationships that organisms exhibit? Give examples of each.

Accepted Answer

The answer of What are the types of symbiotic relationships...

Quiz 16: Marine Communities