Explain how immigration and competition changed the community structure from year 1 to year 9.
Question 5
5.
Describe the expected distribution of the five original types of plants in another 20 years. Explain your reasoning
Question 6
6.
Question 7
7.
Question 8
8.
What organism(s) are popular in the community 1 year after the volcanic eruption?
algae
mosses
ferns
lichens
seed plants
What organism is the most popular in the community 9 years after the volcanic eruption?
algae
mosses
ferns
lichens
seed plants
What type of succession occurred in this community?
A. primary
B. secondary
Pioneer species are the first species to take hold in a barren area after a disaster has occurred. Based on the data, most pioneer species in this area were which of the following?
A. algae
B. mosses
C. ferns
D.seed plants
The recolonization of this area by algae, mosses, ferns, and seed plants reestablished which trophic level in the devastated ecosystem?
A. decomposer
B. primary consumer
C. producer
D. secondary consumer
Most organisms were unable to live in the area for the first six months after the eruption. Which of the following changes most likely needed to occur in the area so that organisms could return there?
