The condition that is most likely to be present in the region left by the melting glaciers in Alaska is that algae and fungi growing on bare rock. This is because environment in primary succession is essentially deprived of vegetation and several kinds of organisms. Thus, plants are unable to grow since the soil lacks nutrients.
Lysosomes:an organelle in the cytoplasm of Eukaryota cells containing degradation enzymes enclosed in a membrane.
It makes the Earth livable for us creatures. We get protected from the Sun's harmful rays reaching to Earth, which makes Earth feel comfortable. Atmosphere also contains Oxygen and we rely on that everyday.
Mouth, throat, small and large intestine
Hierarchy - I don’t think I have the full context of the question but the word fits the best of its biology related