REVISON ECOSYSTEMS

Which of the following organisms is a producer?

• grass

• rabbit

• fox

• snake

What would happen to the rabbit population if the fox population moved out of the area represented by the food web?

• The rabbit population would increase

• The rabbit population would decrease

• The rabbit population would neither increase nor decrease

The arrows in a food chain or web represents what?

• They point to the organism that is being eaten.
• It shows how sunlight flows within an ecosystem.
• They show what direction the energy is flowing between organisms. 
• They represent how water is transferred within a habitat.

The living part of the ecosystem is the ______________________. 

• Community
• Web
• Chain
• Organism

What is the main source of energy in the food web?

• Snake
• Sun
• Grasshopper
• Hawk

All living parts of a ecosytem

• population
• commmunity
• habitat
• food chain

The number of a specific organism in an ecosystem.

• habitat
• environment
• population
• food source

In the food web, what do the arrows represent?

• Which animals play with each other
• how food is produced
• the flow of energy
• the population 

What would happen to the deer population in the forest if the food supply for the deer decreased?

• They would increase because the deer would fight over the food.
• They would decrease because the deer would move because there is not enough food
• It would stay the same

Predict what would happen in this ecosytem if the population of jaguars increased.

• The population trees would increase because jaguars help trees grow.
• The population of zebras would decrease because jaguars eat zebras.
• The population of elephants would increase.
• The population of vultures would decrease.