Bio- Module 13

The maximum population a habitat can support is its

Carrying capacity.

2.______________ is the study of the interrelationships among organisms and their surroundings.

Ecology

The equilibrium theory of island biogeography predicts that large islands close to the mainland will have more species than small islands that are distant from the mainland. Which of the following factors does not contribute to that prediction?

Evolution occurs more rapidly on large islands, thereby increasing species diversity.

An ideal habitat with unlimited resources is associated with

Exponential growth.

Logistic growth involves

Population growth slowing down as the population approaches carrying capacity.

In exponential growth

Population size grows faster and faster as the population gets bigger.

What kind of island has the highest rate of extinction?

a small island

In a grassy pine savannah, a longer interval between prescribed burns typically leads to _____.

bigger woody species

7. A______________- lives on or inside of its host. It usually harms or weakens the host but does not immediately kill it.

parasite

4. A(n)_______________ consists of all the members of a species that live together in a specific geographic region.

population

What information is presented on the y-axis?

the rate of immigration or extinction

Which one of the following statements about prescribed burns is true?

Some species of pine trees require fire to reproduce.

Food availability decreases as population increases

density-dependent factor

What component of weather is watched most closely when determining when to conduct a prescribed burn?

relative humidity

What characteristics of lionfish contribute to their ability to spread and become established in new areas?

A single lionfish female may produce up to 2 million eggs a year. The eggs float for up to a month, spreading the lionfish populations.

How did the fish biologists determine the diet of lionfish in the regions where the lionfish have invaded?

Biologists examined the contents of the stomachs of lionfish caught in the wild.

5._________________ is the process by which two species act as forces of natural selection on one another.

Coevolution

Which of the following would NOT cause population size to decrease?

Increased birth rate

4.________________ competition occurs between individuals of different species, whereas_________________ competition occurs within the species.

Interspecific, intraspecific

Why do we classify lionfish populations near the eastern United States as an invasive species? What suggests that these new populations are not an expansion of the lionfish's natural range?

Lionfish are native to the tropical Pacific. There are no natural water routes of warm water between the Pacific and Atlantic oceans.

3._________________ is a phenomenon in which one species evolves to assume the appearance of another species.

Mimicry

Based upon what we are learning about the lionfish diet, what is most likely going to happen to Caribbean coral reefs invaded by lionfish?

There will be fewer algae eating fish. More algae will grow over and damage corals.

The number of species on an island is at equilibrium when the rate of immigration is equal to the rate of extinction. This is shown on the graph by the points where each green and red line cross. What kind of island is likely to have the highest number of species?

a large island close to the mainland

On what kind of island would new species be most likely to arrive?

an island that is close to the mainland

5. The________________ is made up of all of Earth's ecosystems, or all the parts of Earth that support life.

biosphere

Based upon what we are learning about invasive lionfish populations in the Caribbean and along the Atlantic coast of the United States, these lionfish populations __________.

cannot be eliminated by any means currently known

Predation becomes more intense as population size increases

density-dependent factor

Space limitations cause birth rate to decline as population size increases

density-dependent factor

An oil spill's effect on population does not depend on population size

density-independent factor

1. A(n)__________________ includes all the organisms in a defined geographical area, as well the nonliving components with which they interact.

ecosystem

3. The average number of children born to each woman in a human population is known as the total______________ rate.

fertility

Which of the following is a result of the prescribed burning of an open and grassy pine savannah?

less-intense natural wildfires

6. Each species occupies a unique ecological_____________ that encompasses all aspects of its way of life, such as where it lives and what resources it consumes.

niche

2. A______________ eats its prey and must kill to survive.

predator

In an open and grassy pine savannah, fires _____.

prevent the development of a hardwood forest

1. When all previous traces of life have been wiped out, the process of forming a new community is known as______________ succession.

primary

What does the top red graph line represent?

the rate at which new species immigrate to an island that is close to the mainland