1. An organism, population, biological community, ecosystem, biome, and biosphere
2. The atmosphere is the part of the biosphere that describes the gasses on earth. The hydrosphere is the part of the biosphere that accounts for all of the water on the entirety of the surface of the earth. The lithosphere is the part of the biosphere that captures all of the landmasses on the earth’s crust and in the oceans.
An earthworm is a tubular, segmented worm of the phylum Annelida. They occur worldwide and are commonly found in soil, eating live and dead organic matter.
The slight positive charges on the hydrogen atoms in a water molecule attract the slight negative charges on the oxygen atoms of other water molecules. This tiny force of attraction is called a hydrogen bond. This bond is very weak.