The first single celled life form appeared on earth roughly about 3.5 billion years ago
Genetic variation. We all have different gene expressions and often times we have different parent cells than somebody else of the same species, though, it's possible to share similar characteristics.
I think it's "What is Dendrites" hope this helped :-)
Answer:
Show that life can only come from life (rather than spontaneous generation)
Explanation:
Pasteur boiled a broth in a flask with an S-shaped neck. Thebend in the neck prevented particles from the air reaching the broth, but still allowed air to get in. No bacteria grew in the flask.
When the flask neck was broken so that particles could get inside, the broth became cloudy, showing that microorganisms were only able to grow from other living things from the outside, and not spontaneously from nothing
In modern texts and in Earth system science, geosphere<span> refers to the solid </span>parts<span> of the Earth; it is used along with atmosphere, hydrosphere, and biosphere to describe the systems of the Earth.</span>
