Question

primary and secondary succession
put the letter of the description below the picture it matches.

1. _________
2. _________
3. _________
4. _________
5. _________
6. _________
7. _________
8. _________

a. newly exposed rock. no soil present.
b. grasses and flowers begin to grow. pollinators come to the area.
c. moss and lichens begin growing on rocks, and breaking them down into soil.
d. the soil is deep enough for young trees to begin growing. secondary consumers help control the primary consumer population.
e. after a disturbance, only soil is left behind.
f. mature forest forms. ecosystem is full of lifeforms, and nearing climax community.
g. bushes and shrubs begin to grow as the soil becomes more nutrient - rich. primary consumers begin feeding on the plants.
h. a forest fire destroys an area of forest, along with all organisms in the area.

Explanation:

1. Match images to ecological succession stages:

• Image 1 shows grasses/flowers with pollinators, matching B.
• Image 2 shows a mature forest with wildlife, matching F.
• Image 3 shows moss/lichen on bare rock (soil formation), matching C.
• Image 4 shows a burned forest, matching H.
• Image 5 shows young trees with secondary consumers, matching D.
• Image 6 shows bare rock with no soil, matching A.
• Image 7 shows bushes/shrubs with primary consumers, matching G.
• Image 8 shows only soil left after disturbance, matching E.

Answer:

1. B. Grasses and flowers begin to grow. Pollinators come to the area.
2. F. Mature forest forms. Ecosystem is full of lifeforms, and nearing climax community.
3. C. Moss and lichens begin growing on rocks, and breaking them down into soil.
4. H. A forest fire destroys an area of forest, along with all organisms in the area.
5. D. The soil is deep enough for young trees to begin growing. Secondary consumers help control the primary consumer population.
6. A. Newly exposed rock. No soil present.
7. G. Bushes and shrubs begin to grow as the soil becomes more nutrient-rich. Primary consumers begin feeding on the plants.
8. E. After a disturbance, only soil is left behind.