ecological succession

Select all choices that would be in the center of a Venn diagram of Primary and Secondary Succession. (remember - you have notes!!!)

• no soil

• progress to a mature climax stage

• types of succession

• have biotic and abiotic factors

Which of the following is considered secondary succession?

• an abandoned field

• cooled lava flow

• a forest destroyed by fire

• a community destroyed by a tornado

Select two pioneer species

• Lichen

• Moss

• Deciduous tree

• Deer

After a fire, nutrients are returned to the ground in the form of

• Hope

• Ash

• Lichen

• Moss

Pioneer species secrete ____s that break down rock into soil.

• Pineapple juice

• acid

• base

• water

Which of the following represents secondary succession

• lichen on rocks

• plants growing on sand dunes

• moss growing on volcanic lava

• plants growing in a forest after a fire

The picture shows what type of succession?

• primary
• secondary
• tertiary
• quadanary

A pioneer species is...

• a large organism
• the first organisms to adapt to a new environment 
• The best organism 
• Abiotic organisms 

Why is biodiveristy important in an ecosystem?

• The number of offspring for a species increases

• It creates more competition for resources among species

• The number of organisms in the food pyramid will increase at each trophic level

• It leads to sustainability, which enables it to withstand a disturbance

What is formed during primary succession that doesn't need to be formed during secondary succession?

• soil

• grass

• pioneer species

• lichen