Ecosystems
Nutrient Cycles
Energy Flow
Carrying Capacity
Biomes
200
A group of closely related organisms that can reproduce with one another. 

What is Species 

200

What are the three main nutrient cycles? 

What is the Carbon cycle, Nitrogen cycle, and the Phosphorus cycle. 

200

Primary producers obtain energy from what? 

The sunlight 

200

The graph that shows how populations increase exponentially and forms a shape that represents a letter in the alphabet is called?

What is the "J" curve.

200

This Biome has minimal rainfall, and organisms are adapted to water loss, while temperatures are very hot during the day but cold at night. 

What is a Desert. 

400

Organisms that require the same resource in the same location at the same time is called what? 

Competition 

400

This chemical reaction occurs when it converts solar energy and atmospheric carbon dioxide gas into a chemical energy. 

What is Photosynthesis 

400

These creatures break down dead and decaying matter into simpler molecule that can be absorbed.  

What is a "Decomposer"

400

When the limiting factors limit the growth of a population, this curve levels off at the carrying capacity and is called?

What is the "S" curve.

400

A average pattern of weather conditions that occur in a region over a period of years is called what?

Climate

600

Barnacles attach to whales and are transported to new locations in the ocean is called what?

What is commensalism.

600

Ammonium is converted into nitrate and nitrite through what process?

Nitrification

600

Arrows in a food web show the transfer of what? 

What is Energy 

600

Animals that have fewer offspring, are strong/well-protected, usually large, and have long life expectancy are called?

What is "K" strategists.

600

What 4 factors influences temperature and precipitation 

What are: Latitude, elevation, wind, and ocean currents.  

800

A introduced invasive species can make a natural habitat unsuitable for native species by changing its structure or composition is called what

What is habitat alteration 

800

This cycle does not cycle through the atmosphere but weathering causes it to enter water or soil.

What is the Phosphorous cycle 

800

The time it takes for the amount of a substance to decrease by half is called what? 

What is "PCBs/half-life" 

800

The number of offspring produced is called what? 

What is Fertility  

800

What is an introduced predator?

Predation 

1000

These species have large impacts on their habitats as they affect many other species. 

What is the "Keystone Species" 

1000

High levels of nitrogen causes a increased amount of algal growth in aquatic ecosystems, depriving aquatic organisms of sunlight and oxygen is called what?  

Eutrophication

1000

This term refers to the process in which pollutants not only accumulate, but also become more concentrated at each trophic level. 

What is Biomagnification 

1000

The addition of new individuals is called what? 

What is Natality 

1000

These species are the first organisms to inhabit barren environments.  

Pioneer Species 

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