Ecology Practice questions

An area was recently destroyed by a raging wildfire. Which of the following events would allow secondary succession to take place?

• Animals that survive migrate to surrounding areas

• Plant life that survive begin to die out as a result of the lack of available nutrients

• The dead bodies of animals that did not survive the fire return nutrients to the soil.

• Omnivores that survive create a decline of both the herbivore and carnivore population

Which of the following cannot be recycled?

• carbon

• water

• nitrogen

• chemical energy in bonds

The release of water vapor from the leaves of trees is called

• evaporation

• condensation

• transpiration

• precipitation

Check all abiotic factors

• soil

• bacteria

• sunlight

• water

• plants

The most important organisms in the nitrogen cycle are:

• bacteria

• humans

• trees

• legumes

• consumers

Grass --> Rabbit --> Snake --> Hawk. Which organism is the secondary consumer in this chain?

• grass

• rabbit

• snake

• hawk

Mushrooms and other fungi are responsible for breaking down dead organic matter. In the ecosystem, they are called

• abiotic

• decomposers

• producers

• consumers

On what trophic level would you find organisms that use the sun's energy directly to make their own food?

• 1st trophic level

• 2nd trophic level

• 3rd trophic level

• 4th trophic level

Which of the following statements is true about matter and energy?

• Matter is not recycled; energy is recycled

• Matter is recycled; energy is not recycled

• Both matter and energy are recycled

• Neither matter nor energy are recycled

A lichen is actually two organisms living together, an algae and a fungus. The fungus grows around the algal cells & gains support while the fungus benefits from the constant supply of food produced by the photosynthetic algae. What type of symbiotic relationship is this?

• commensalism

• mutualism

• parasitism

• competition