Question

which type of succession happens after a fire in a forest? *
primary
secondary
climax
tertiary
which organisms usually appear first in primary succession? *
trees
shrubs
grasses
lichens and moss

Explanation:

1. After a forest fire, the soil remains intact with seeds and roots surviving underground. Secondary succession occurs in areas where a pre - existing community has been disturbed. Primary succession starts on bare rock or newly formed land with no soil. Climax is the final stable community in succession, not a type of succession after a fire. There is no such thing as tertiary succession in ecological succession concepts.
2. In primary succession, which occurs on bare rock or new land with no soil, lichens and mosses are pioneer species. They can grow on bare rock, break it down over time to form soil, which allows other plants to grow later. Trees, shrubs, and grasses require soil to establish and grow, so they come later in the succession process.

Answer:

1. B. Secondary
2. D. Lichens and moss