Succession

_________________ succession is the series of changes that occur in an area where no soil or organism exist.

• Primary

• Secondary

• Tertiary

The first species to populate an area are called ________________ species.

• main

• pioneer

• secondary

Lichens are fungi and algae growing in symbiotic relationship. (True or False)

• True

• False

• Unidentified

Reaching this mature community, can take only a few years, but once it’s stablish it can last for thousands of years or more. (True or False)

• True

• False

• Unknown

___________ succession is the series of change that occur in an area where the ecosystem has been disturbed, but where the soil and organisms already exist.

• Primary

• Secondary

• Tertiary

Natural disruption that affect the physical and biological components of an ecosystem include fire, hurricanes, tsunamis and tornadoes. (True or False)

• True

• False

• Unknown

Wild fire is not a form of natural disruption. ( True or False)

• True

• False

• Unknown

Natural disasters such as flood and tornados can cause rapid change. (True or False)

• True

• False

• Unknown

Disruptions to the physical or biological components of an ecosystem can not impact organism population there.

(True or False)

• True

• False

• Unidentified

Human activities, such as farming, logging or mining may disturb an ecosystem. (True or False)

• True

• False

• Unknown