Show:
Vocabulary I
Vocabulary II
Population Dynamics
Survival & Change
Adaptations & Relationships
100

This term describes a group of organisms of the same species that live in the same area.

Population

100

Joining or moving into a population is called this.

Immigration

100
Two ways that an organism can join a population

Birth

Immigration

100
Two causes for the decline in biodiversity worldwide.

HABITAT DESTRUCTION 

POLLUTION

OVERFISHING

OVERHUNTING

CLIMATE CHANGE

100

Webbed feet is an example of what type of adaptation?

Physical

200

What are environmental factors that cause a population to stop growing or decrease called?

Limiting Factors


200
All living and non-living things in an area that interact with one another.

Ecosystem

200

Does the population statement below show an increase or decrease?

Birth Rate > Death Rate

Increase


200

Overfishing, pollution, and climate change are all (blanks) to ecosystems.

Threats
200

A symbiotic relationship in which both species can benefit is called...

Mutualism

300

The variety of life or number of different species in an ecosystem.

Biodiversity

300
This is a chain reaction that happens in an ecosystem when the top predator is removed. There is an increase in herbivores and changes the landscape of the ecosystem.

Trophic Cascade

300

Two ways an individual can leave a population.

Death

Emigration


300

This is a definition of an adaptation.

A trait or behavior that helps an organism survive or reproduce.

300

Two ways humans can help improve biodiversity

Clean up pollution

Advocate for environmental policies


400

Exiting or moving out of a population.

Emigration

400

A species that is necessary to maintain ecosystem health. Without this species, the ecosystem would change drastically. 

Keystone Species

400

This is the difference between an endangered species and an extinct species.

Endangered Species - species with very low population numbers.

Extinct Species - a species that died out entirely and no longer exists on Earth.

400

The two categories of adaptations.

Physical

Behavioral 

400

Three reasons biodiversity is important 

1. makes ecosystems balanced 

2. humans rely on other living things to survive

3. makes ecosystems resistant to change

500

This is considered the largest population that an area can support.

Carrying Capacity

500

This is a species that is found in a particular ecosystem that is not brought there by humans. 

Native Species

500

Four Examples of Limiting Factors

1. Food & Water

2. Space

3. Weather

4. Diseases/Parasites


500

True/False: Poaching, Deforestation, and Pollution are all factors that have caused biodiversity to decline

True


500

What is population density and how is it measured?

Is the number of individuals in a specific area. Measured by dividing population by area of location.