Populations

• Science
• Secondary Education

Q.
Which type of ecosystem is this?

1. Polar Region
2. Boreal Forest
3. Deep Ocean
4. Mountain

ECOSYSTEM

Q.
What are the two main parts of an ecosystem?

1. Animals and plants
2. Habitat and ecosystem
3. Habitat and rocks
4. Living and non-living things

Q.
The system contains all living things on Earth.

1. Biosphere
2. Atmosphere
3. Hydrosphere
4. Geosphere

It is the total amount of water on the earth.

1. Biosphere
2. Atmosphere
3. Hydrosphere
4. Lithosphere

different species that live together in the same area at the same time.

Q.
A population is...

1. Multiple species that live in one area
2. All of the living and nonliving things in an area
3. A group of one species in one area
4. The rocky area of the earth.

a group of organisms that have similar traits and are able to produce fertile offspring. (plural)

Q.
Food, water, sunlight, shelter, and space are resources that are often __________.

1. populations
2. community
3. carrying capacity
4. limiting factors

Q.
The average number of people living in an area

1. population distribution
2. population density
3. population
4. community density

True / False The lower the population density the more populated the area is.

Which of the following is TRUE about competition?

1. different species that live together in the same area at the same time.
2. the demand for resources, such as food, water, and shelter, is in short supply in a community.
3. the same species that live together in the same area at the same time.
4. Living and nonliving things.

True / False The carrying capacity of an environment is not constant because it increases and decreases as the amount of available resources increases and decreases.

Q.
When a population grows past the ecosystem's carrying capacity, what happens to the population?

1. Continues to grow
2. The population starts to die off to return to carrying capcity
3. The population will go extinct due to a lack of resources
4. The population grows then finds a new carrying capacity

Why biotic potential is unlikely to achieve?

1. no ecosystem has an unlimited supply of natural resources
2. ecosystems have a lot of community in it
3. too large population density is available
4. there are more abiotic factors present

True / False
When resources are not available a population will decrease in size.

Q.
Carrying capacity is...

1. The lowest number of organisms in an ecosystem.
2. The total number of organisms in an ecosystem.
3. The maximum number of organisms an ecosystem and its resources can support.
4. The number of living organisms in an ecosystem.