Ecosystem Roles
Energy Flow in Ecosystems
Photosynthesis and Respiration
Interactions in Nature
Adaptations and Changes
100

These organisms are the primary source of energy in an ecosystem, converting solar energy into food.

What are producers?

100

This is the term for the sequence of who eats whom in an ecosystem.

What is a food chain?

100

Plants use this gas from the atmosphere during photosynthesis.

What is carbon dioxide?

100

This term describes the relationship where two species benefit from each other, like the clownfish and sea anemone.

What is mutualism?

100

This factor would have the greatest influence on when animals in the Northern Hemisphere migrate south.

What are cold air temperatures?

200

his term describes an organism that eats both plants and animals.

What is an omnivore?

200

In a food chain, this level has the most available energy.

What is the producer level?

200

This is produced during photosynthesis and is crucial for energy storage.

What is glucose?

200

The relationship between a predator and its prey, such as the bald eagle and snakes, affects population sizes. This interaction can lead to this.

What is a decrease in the prey population?

200

Increased snowfall would force reindeer to do this for survival during winter.

What is move to other areas to compete for resources?

300

This role in the ecosystem is filled by organisms that break down dead material, returning nutrients to the soil.

What are decomposers?

300

This effect is most likely when a producer is removed from a food chain.

What is it impacts the entire chain?

300

The experiment with Elodea aimed to show how this factor affects the rate of photosynthesis.

What is light intensity?

300

If the sea grasses in an ecosystem decrease, this group of organisms would most likely be directly affected.

Fish, insects, first level consumers, etc...

300

This change could cause populations of rats and other small animals to increase if populations of American alligators decrease.

What is the removal of a predator?

400

These small mouse-like animals that eat plants and insects are considered this type of consumer.

What are herbivores?

400

The pyramid shape used to represent this shows that energy decreases as it moves up through trophic levels.

What is an energy pyramid?

400

This process allows plants to convert carbon dioxide and water into oxygen and glucose using sunlight.

What is photosynthesis?

400

This interaction involves two or more species using the same resource, often leading to decreased resources for both.

What is competition?

400

Volcanic eruptions reduce the transfer of energy from this to plants, affecting the food chain.

What is the Sun?

500

This process allows nutrients from organic material to be added back to the soil, crucial for plant growth.

What is decomposition?

500

This is what happens to energy as it moves from one link to the next in a food chain.

What is the energy is transferred between organisms?

500

This cycle between plants and animals involving oxygen and carbon dioxide, as well as nitrogen. 

What is the matter cycle?

500

Forest fires can benefit ecosystems by positively impacting this abiotic factor.

 What is: nutrients in soil, additional sunlight, etc...

500

Rainforests have poor soil because of this reason, despite their diversity.

What is the nutrients are being utilized by the plant life?

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