Extension 4th Six weeks test

Which list does NOT include biotic factors?

• elephants, zebras, acacia trees, bushes, bacteria

• rocks, water, temperature, sun, clouds

• algae, seaweed, fungi

• decayed zebra, bird eggs, poo from a kangaroo

An ______ is an independent living thing.

• consumer
• producer
• organism
• herbivore

_________ cannot make their own food, so they need to consume (eat) plants or animals.

• consumers
• producers
• decomposers

The  ____________ provides all the initial energy to plants.

• sun
• moon
• environment
• water

____ make their own food through photosynthesis. 

• consumer
• decomposer
• producer

What does a food chain contain? Choose ALL correct answers.

• consumer
• producer
• decomposer
• all of the above

__________ eat decaying matter, dead plants and animals and in the process they break them down. 

• consumer
• producer
• decomposer

If there is 1000 Kcal available in the producers in trophic level 1, how much energy is available in the herbivores in trophic level 2?

• 10 Kcal
• 1 Kcal
• 100 Kcal
• 1000 Kcal

The diagram is intended to show relationships in an ecosystem. What do the arrows represent?

• The direction of population migration
• Differences in dietary habits
• Progressively smaller organisms
• The direction of the energy flow

What do we call the first species that colonize a new area?

• Foreign Species

• Pioneer Species

• Intraspecies

• Interspecies