succession

Question 1

primary succession

Answer 1

happens without any initial soil
happens at newly exposed bare rock
1. pioneer species such as algae, lichens, or mosses are first
2. their decomposition brings organic matter
3. grasses & wildflowers replace pioneer species
4. shrubs
5. soil depth allows for trees

Question 2

facilitation

Answer 2

the process of one organism preparing the way for other organisms to grow b modifying the soil, breaking down soil toxins, or providing shade

Question 3

interference

Answer 3

occurs when one organism keeps other organisms from growing/living/reproducing/ thriving.
ex: large tress block sun from smaller plants

Question 4

where does secondary succession occur

Answer 4

places that have had disturbances that destroy the community but haven’t lost their soil.

Question 5

secondary succession

Answer 5

1. begins with wind-borne seeds of fast-growing species that can grow well in full sun and nutrient-poor soils
2. grass
3. trees