Ecosystems

Match the word to the definition: all the organisms that live in an area together with nonliving factors

• Species

• Ecosystem

• Population

• Community

Which of the following are examples of limiting factors. Choose all that apply:

• Food

• Water

• Soil

• Light

Organisms that have the ability to make their own food are:

• autotroph

• heterotrophs

Pioneer species are

• share the environment with others

• a type of feeding relationship

• the first to live in an area

• include all populations in an area

The upper most layer of the rainforest is called...

• equator

• trees

• habitat

• canopy

Nitrogen is one of the elements needed to build the __________ that make up the structures of living things.

• Gas

• Protein

• Air

• Cycle

Any plant that has tube like structures for internal transport of food and water is...

• Vascular Plant

• Nonvascular Plant

Which of the following best describes a scavenger

• an animal that is very hungry

• eats the remains of organisms left behind

• an animal that is the first to attack an animal

• feeds on both producers and consumers

Energy in most ecosystems begin with

• water

• space

• sun

• photosynthesis

Which of the following best describes the climate in Arizona

• polar ice

• mountains

• desert

• deciduous forest