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scientists compare look for the similarities between fossils and living things.but,only a small part of the organisms that have once lived have been made into fossils.in conclusion the record of fossils is incomplete this tells us that scientists dont have a completed record of changes in life on earth Hope this helps ;D
because cells were unable to be seen without the aid of an electron microscope
It is believed that the Prokaryotes or Bacteria are the oldest form of life (in the evolutionary cycle). At some early point they would have evolved a renewable energy cycle. Cyanobacteria and a few other types of bacteria are able to carry out photosynthesis. The longest living and thus oldest living organisms are the trees. The Bristlecone Pine trees in California/Nevada are thought to hold the current record of 4,800 years, although there are several ancient trees around the world.
the guy with the pea plant thing? Gregor Mendel.
Antony van Leeuwenhoek (1632-1723)was the amerteur microscopist of Delft, The Netherlands. He was the first person to publish exetensive, accurate observations of microorganisms. He earned his living as a draper and haberdasher, but spent much of his spare time constructing simple microscopes composed of double convex lenses held between two silver plates. His microscope could magnify around 50 to 300 times.
fossil or fossil record hope this helps -sj
scientists compare look for the similarities between fossils and living things.but,only a small part of the organisms that have once lived have been made into fossils.in conclusion the record of fossils is incomplete this tells us that scientists dont have a completed record of changes in life on earth Hope this helps ;D
Comparing organisms in the fossil record providesevidence that organisms have changed over time
Their nutrition comes from things in soil, such as decaying roots and leaves. Animal manures are an important food source for earthworms. They eat living organisms such as nematodes, protozoans, rotifers, bacteria, fungi in soil.
Anthony van Leeuwenhoek
Leeuwenhoek's wrote a letter about how he scraped plaque off of his teeth and put it under a microscope. This letter was the first record of bacteria seen living inside of the human body.
Using a recorder :P
Accurate record keeping
because cells were unable to be seen without the aid of an electron microscope
A Seismograph to record the magnitude of the earthquake.
The fossil record
It refers to organisms that lived in the past.