Ecosystem

In the ocean, a sea anemone attaches itself to the shell of a hermit crab. The stinging arms of the sea anemone protect the hermit crab, while the movement of the hermit crab brings food to the sea anemone. Which best describes the relationship between the sea anemone and the hermit crab?

• commensalism
• mutualism
• parasitism

Which term best describes two predators living in the same habitat who feed on the same prey?

• coexistence
• competition
• mutualism

Dead matter and waste would pile up without which type of organism?

• decomposer
• consumer
• producer

Tags

NGSS.MS-LS2-3

As a dog walks through thick brush, a tick attaches to its leg. Which best describes the relationship between the dog and the tick?

• parasitism
• mutualism
• commensalism

Which demonstrates cooperation within an ecosystem?

• plants growing in a garden
• several wolves killing a moose for food
• hummingbirds pollinating trumpet flowers

What does the picture show?

• A Food Web
• An Ecosystem
• A Food Chain
• A nice scenery

Tags

NGSS.MS-LS2-3

Why is a Food Web an important part of an ecosystem?

• It shows the transfer of energy between the living parts of an ecosystem
• It shows what animals eat
• It shows what a producer is
• It shows us how to find our food to eat

What type of organism always starts the food chain?

• Producer (Plants)
• Consumers (Organisms)
• Predators (Organisms)
• Decomposers 

Tags

NGSS.MS-LS2-3

What is a herbivore?

• An organism that only eats plants
• An organism that only eats other animals
• An organism that eats plants and animals

What is a omnivore?

• An organism that only eats plants
• An organism that only eats other animals
• An organism that eats plants and animals