6) Ecological succession leads to the sustainability of life in an ecosystem. Succession is the observed process of change in the
species structure of an ecosystem. The community begins with relatively few pioneering plants and animals and develops
through stages of increasing complexity until it becomes stable. Succession may be initiated either by formation of new,
unoccupied habitat such as the formation of an island or by some form of disturbance such as fire in an existing ecosystem,
Succession that begins in new habitats, uninfluenced by pre-existing communities is called primary succession, whereas
succession that follows disruption of a pre-existing community is called secondary succession.
If a tornado destroys a deciduous forest, what kind of succession follows?
A)
classic ecosystem
B)
climax community
primary succession
D)
secondary succession

In natural selection, what is actually “selected? ” a) alleles are directly selected b) genotypes are directly selected c) phenotypes are directly selected d) entire populations are directly selected

Actual age your first developed of age well comparison age refers to absolute age true or false

You decide that the introduction should also discuss the extremophiles that are referred to as the archaea. these single-cell organisms are considered "extremophiles" due to their ability to survive and reproduce in environmental conditions that would be hostile for most living organisms. archaea species have been isolated from highly acidic sulfur springs, ocean floor thermal vents with temperatures that exceed boiling, and subarctic ice well below freezing. while still considered to be prokaryotic, the archaea have numerous differences that place them apart from the bacteria. choose the characteristics that separate the archaea from other prokaryotic cells. select all that apply. view available hint(s) select all that apply. archaea lack true peptidoglycan in their cell walls. the morphology of the cell is rigid and is geometric in shape, similar to a sphere or cylinder. the cytoplasmic membrane lipids of archaea have branched or ringform hydrocarbon chains. all currently identified and characterized archaea have been linked as the causative agent to an animal or human disease.