{{asɛmtiNe Ɔkyerɛwfo}} | Nhomakorabea | Nneɛma a ɛma wotumi yɛ ade

5

If the population of predators suddenly increases, what would you expect to happen to the population size of the prey?

It will decrease

It will increase

It will stay the same

5

Biotic factors are the __________ things in an environment.

Nonliving

Living

Multicellular

Parasitistic

5

Abiotic factors are the __________ things in an environment.

Parasitistic

Living

Nonliving

Multicellular

5

If you remove an abiotic factor (rocks, soil, water, wind, sunlight, temperature, etc.) from the environment, it will not affect the biotic factors in the environment

Nokorɛ

Ɛnyɛ ampa

5

A dead tree is considered a biotic factor because it was once living.

Nokorɛ

Ɛnyɛ ampa

5

In the picture above, energy from this ecosystem originally comes from?

Consumer

Water

Plants

Sun

1

The specific environment in which an organism lives is called

Population density

Habitat

Biotic Factors

Species

1

A _______________is a group of organisms that interbreed and produce fertile offspring

Population density

Species

Community

Habitat

1

Information on brown tree snakes is provided along with information on the island of Guam. Brown tree snakes were first brought to Guam in 1950.
Which of the following would provide evidence that the change to this environment brought about by the introduction of the brown tree snake has had an effect on the populations of organisms that lived on Guam?

The longest brown tree snake ever found on Guam measured 3 meters in length.

Many of the military bases on Guam were closed in the 1980s.

Several other species of snakes were known to live on Guam before 1950.

The population of lizards on Guam in 1960 was very small.

1

A physical disruption to an ecosystem occurred when a highway was built through a forest. Which of the following would provide evidence that the addition of a highway to this forest affected populations?

The amount of water runoff from higher elevations increased after the highway was built.

The trees that were not cut down during the construction of the highway continued to grow.

There were fewer species of nesting birds living in the forest after the highway was built.

A greater area of the forest floor was exposed to the sunlight after the highway was built.

1

Bank swallows are birds that make their nests on the edges of rivers. Bank swallows can’t swim or breathe underwater. They feed on flying insects and, in the spring, lay four or five eggs. Which of the following observations would provide evidence that the population of bank swallows was affected by a change in the environment?

The largest swallows catch and eat more insects than the smallest ones.

Swallows that lay four eggs one year may lay five eggs the following year.

Fewer swallows build nests along the river when the water level rises.

Swallows share a food source with other animals that also eat insects.

1

Trout is a fish that lays its eggs in cold fresh water but spends some of its life in the ocean. Trout eat smaller fish. The graph provided shows the population of trout in the state of Wisconsin between the years 1999 and 2014.
A shift in ocean currents that occurred in 2000 and again in 2001. Which change to the ecosystem had the largest effect on the the population of trout in Wisconsin?

A hard freeze of many of the lakes in Wisconsin in the winter of 2006

The slow rise in lake temperatures in Wisconsin between 1999 and 2014

The rise in population of smaller fish in Wisconsin lakes between 2010 and 2011

5

Match each term to the correct definition

Draggable item		Corresponding Item
population		constant change or progress
ecosystem dynamics		all the biotic or abiotic factors of an environment
ecosystem		the ability to recover from a disturbance
resilience		a group of individuals of the same species
dynamic		changes in ecosystem factors over time

1

Dynamics of Ecosystem PopQuiz

Dynamics of Ecosystem PopQuiz

If the population of predators suddenly increases, what would you expect to happen to the population size of the prey?

Biotic factors are the __________ things in an environment.

Abiotic factors are the __________ things in an environment.

If you remove an abiotic factor (rocks, soil, water, wind, sunlight, temperature, etc.) from the environment, it will not affect the biotic factors in the environment

A dead tree is considered a biotic factor because it was once living.

In the picture above, energy from this ecosystem originally comes from?

The specific environment in which an organism lives is called

A _______________is a group of organisms that interbreed and produce fertile offspring

A physical disruption to an ecosystem occurred when a highway was built through a forest. Which of the following would provide evidence that the addition of a highway to this forest affected populations?

Match each term to the correct definition

If the population of predators suddenly increases, what would you expect to happen to the population size of the prey?

Biotic factors are the __________ things in an environment.

Abiotic factors are the __________ things in an environment.

If you remove an abiotic factor (rocks, soil, water, wind, sunlight, temperature, etc.) from the environment, it will not affect the biotic factors in the environment

A dead tree is considered a biotic factor because it was once living.

In the picture above, energy from this ecosystem originally comes from?

The specific environment in which an organism lives is called

A _______________is a group of organisms that interbreed and produce fertile offspring

A physical disruption to an ecosystem occurred when a highway was built through a forest. Which of the following would provide evidence that the addition of a highway to this forest affected populations?

Match each term to the correct definition

Removing a habitat by cutting down trees or draining a lake is a __________ disturbance that affects an ecosystem.

Removing a habitat by cutting down trees or draining a lake is a __________ disturbance that affects an ecosystem.