Write a short summary in your own words about each of these animals. The first four are whale ancestors, and the last two are modern whales. Note any major changes or adaptations, or interesting information from the fossil record. Each summary should be three to five sentences. You may research this information using reliable journals, books, or websites. You can review reliable sources if needed. Be sure to note any sources you use. Pakicetus

Ambulocetus

Rodhocetus

Dorudon

Odontocetes

Mysticetes

step 1: nitrogen fixation- conversion of atmospheric no₂ into forms useful to plants by lightning, bacteria, and cyanobacteria.

step 2: nitrification-process of converting ammonia to nitrite or nitrate.

step 3: assimilation-plant roots absorb new form of nitrogen.

step 4: ammonification-conversion of organic nitrogen to ammonia by bacteria involved in decomposition.

step 5: denitrification-bacteria turns the decomposed matter back into n₂o, which is released into atmosphere; repeat cycle.

imagine a line passing through the center of earth that goes through both the north pole and the south pole. this imaginary line is called an axis. earth spins around its axis, just as a top spins around its spindle. this spinning movement is called earth's rotation. at the same time that the earth spins on its axis, it also orbits, or revolves around the sun. this movement is called revolution.

it is because according to the process , scientific inquiry is a process with many steps because each step occurs to the scientist and if you just skip a step there would be no steps to scientific inquiry.