Ecosystems

Describe a predator prey relationship.
Answer: Predators are omnivores or carnivores that consume prey. /

Ecosystems

Describe a parasite-host relationship.
Answer: The parasite absorbs nutrients and energy from its host, harming the host.

Ecosystems

Describe a producer-consumer relationship
Answer: Producers make their own food using energy from the sun while consumers need to eat to obtain energy. /

Ecosystems

A plant that absorbs nutrients and water from another plant is an example of a relationship.
Answer: Parasite-host

Ecosystems

On a food web, the arrows are putting in the direction of….

Answer: The flow of energy.

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Ecosystems

Three predators in a marine food web are….

Answer: Answers may vary, examples are: shark, killer whale, sea otter, herring

Ecosystems

Describe mutualism and give an example from a terrestrial environment…

Answer: A symbiotic relationship between two species where both species benefit. Example: bee and flower

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Ecosystems

Describe commensalism and give an example in a freshwater environment...

Answer: A symbiotic relationship between two species where one species benefits and the other is not helped or harmed. Example: Clownfish and anemone

Ecosystems

List 5 abiotic factors.

Answer: Light, soil, temperature, water, gases in atmosphere, space

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Ecosystems

List 3 biotic factors

Answer: Diseases, parasites, food (prey and producers), consumers

Ecosystems

Are decomposers, a bacteria that breaks down dead organisms, biotic or abiotic?

Answer: Biotic

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Ecosystems

If an organism on a food web, has two arrows pointing away from it, what does that mean?

Answer: It is consumed by more than one organism.

Ecosystems

Which abiotic factor do trees compete for the most?

Answer: Light

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Ecosystems

If the food source of a fish starts to die off due to pollution, what will happen to the fish?

Answer: Population will decrease.

Ecosystems

How would the use of pesticides affect a food web that includes insects that are also prey?

Answer: As the insects are killed, the consumer that eats them will also be killed.

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Ecosystems

Many plants can only live in certain temperatures. When runoff causes near by water to get warmer, what happens to these plants?

Answer: They die off, affecting the entire food web.

Ecosystems

How do artificial reefs affect the ecosystem?

Answer: Provide a habitat for organisms

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Ecosystems

Name 3 ways humans depend on ocean systems

Answer: Transportation, food, oil, gas, and other natural resources