Seventh Grade Succession Quiz

Question 1

Primary succession 3 to 5 years

Answer 1

• Land is mostly bare
• Plant life includes mosses and lichen in that grow in cracks of rock
• these first species are called the pioneer species

Question 2

Primary succession 15 to 25 years

Answer 2

• Shallow layer of soil is formed
• plants include herbs, ferns, grasses, and plants with short life span
• small bushes and shrubs start to grow at the end of this period
• insects and small organisms begin to populate

Question 3

Primary succession more than 100 years

Answer 3

• Soil is fully developed
• plants including shrubs and small trees
• layers of forest begin to develop
• trees create shade which allows more types of plants to grow
• climax species dominate the area because they’re slow growing well adapted species

Question 4

How does secondary succession start?

Answer 4

Organisms are driven away

Question 5

Secondary succession 3 to 5 years

Answer 5

• weeds and small plants have fully moved in at this point

- insects and small organisms help carry seeds from other areas

Question 6

Secondary succession 15 to 25 years

Answer 6

• shrubs and small trees have already established themselves
• most small trees at this point would be conifers
• smaller animals move in with the availability of new homes and habitats

Question 7

Secondary succession more than 100 years

Answer 7

• Small and large trees are fully re-established
• many hardware trees are growing such as oak and maple
• larger animals settle in this area

Question 8

How does a primary succession start?

Answer 8

Volcano Eruption