Ecosystems Pretest

What is an ecosystem?

• a community of interacting organisms and their physical environment

• a biological community of interacting animals

• forests, oceans and grasslands

• a system of non-living plants and trees

Which is a biotic factor?

• Rabbit

• Mountain

• Air

• Water

Which layer contains the most energy?

• Plants

• Insects

• Frogs

• Hawk

This organism is an example of an

• omnivore

• herbivore

• detritivore

• carnivore

Read the following article.

The camel has many adaptive traits for their life in the desert. They have wide feet for walking in sand. They have long eyelashes and thin, slit nostrils that they can close to protect them from blowing sand. They are adapted to survive a long time without water and food. Which of the following is an adaptation?

• Long eyelashes

• 4 legs

• Light brown fur

• Grunting

Why wouldn't you expect to find a camel in a cold arctic environment.

• They don't eat fish

• They dont make friends with penguins

• They are adapted to hot, dry climates

• They are not good swimmers

Which relationship will decrease a population

• collaboration

• competition

• mating

• symbiosis

What type of relationship is shown in the picture?

• mutualism

• parasitism

• commensalism

What is the relationship the anenome has with the clown fish?

• symbiosis

• commensalism

• parasitism

• mutualism

Why are bees so important for ecosytems?

• they kill pests

• they are pests themselves

• they eat crops

• they support plant reproduction