Ecosystems 4/15/21

Plants interact with living and nonliving components in their environment. Which is an interaction with a nonliving element?

• Small insects eating the stems of the plants
• Humans breathing oxygen released by plants
• Bees gathering pollen from flowers of plants
• Sandy soil holding the roots of the plants

All of the following are examples of living things interacting with each other EXCEPT —

• birds preying on insects living in the grass
• squirrels spreading the seeds of trees by burying them
• frogs sleeping in the mud at the bottom of the pond
• fish eating plants and other smaller fish

Many animals in an ecosystem depend on other animals for —

• air
• energy
• shelter
• water

Which of the following examples shows how one organism is dependent on another for survival?

• A bee collects pollen as it moves from flower to flower.
• A sea anemone attaches itself to a hermit crab to feed on its leftover scraps.
• A giraffe stretches its neck to eat the leaves off a tall tree.
• All of the above

An ecosystem is a community of animals and plants interacting with their ____________.

• habitat
• climate
• environment
• community

Which is an example of an abiotic factor in a desert?

• Sun
• cactus
• scorpion
• snake

Which is an example of a biotic factor in a desert?

• Sun
• soil
• snake
• minerals

Which answer best describes a producer in an ecosystem?

• a living organism
• a living organism that produces its own food
• a living organism that produces its own food and is food for other living organisms
• a living organism that produces and consumes other living organisms

Which answer best describes a consumer in an ecosystem?

• A living organism that eats other living organisms
• Someone that buys something
• A living organism that produces food for other living organisms
• An abiotic factor

Which answer best describes a decomposser?

• an organism that produces oxygen
• an organism that is dead and decomposing
• an organism that is not natures recycler
• an organism that gets energy by breaking down dead organisms