Science Unit 5 quiz 2

Which of these shows a possible food chain for an ecosystem?

• shark--> fish --> plankton -->sun

• sun --> plankton --> fish --> shark

• plankton --> sun --> fish --> shark

• plankton --> fish --> shark --> sun

If the snake population decreased, which group would increase in number?

• Producers

• Primary consumers

• Secondary consumers

• Tertiary consumers

• Decomposers

A raccoon eats plants and animals. It is an example of a(n)

• omnivore

• carnivore

• herbivore

• decomposer

The initial source of energy for all ecosystems is...

• The Sun

• Photosynthesis

• Sugar

• There is no one source

If you constructed a food chain, what role does the plant play?

• Producer

• Primary Consumer

• Secondary Consumer

• Tertiary Consumer

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.

How much energy is available to be passed on to the next level in a food web?

• 100%

• 10%

• 50%

• 75%

Consumers obtain energy by

• eating other organisms
• eating plants
• photosynthesis
• nitrogen

In this Food Web Pyramid Which type of consumer gets only 10% of the energy stored in plants?

• Herbivore
• Carnivore
• Omnivore
• Secondary Consumer

Organisms that break down wastes and dead organisms and return the raw materials to the environment

• Producer

• Consumer

• Decomposer