Answer:
Primary succession occurs in areas without any soil where basically nothing is there. After an event such as a volcanic eruption, pioneer species such as lichens and mosses are able to colonize the land since they can grow without soil and are primitive. Lichens can break down rock to form soil and they can add small amounts of organic matter to the rocks when they decompose to make even more soil. Simple plants like ferns can then grow in the created soil. After these simple plants die, more organic material is added to the soil and the soil thickens, allowing grasses, wildflowers, and other plants to begin to take over. Next, after these plants die, enough nutrients are added to the soil for trees and shrubs to survive. Finally, insects, small birds, and mammals begin to move into the area and form a community, so what was once bare rock can now support a variety of life.
Answer:
the top 2 from left to right are: petal and stigma(*).
The one that follows from top to bottom is anther(#) and the one below is the filament.(#)
to the right there is the style(*) and below there is the ovary(*)
to the left of that, the last one with no symbol is the sepal
the last 2 sentences in the bottom are pistil and stamen
The dark colored peppered moths blended in with the darkened tree barks, letting the light colored moths decrease in population.
Hi there!
I think the Earth's layers itself should be classified as a separate layer instead of part of the lithosphere, since the lithosphere contains the lowest part of atmosphere, rather, and not the matter below it.
Hope this helps!
