A large cloud of gas (hydrogen) and dust a nebula begins to collapse
The collapsing cloud begins to spin
The spinning collapsing cloud flattens into a rotating disk
Material in the disk begins to accumulate in the center
As the material coalesces in center, it becomes dense, compresses, and heats up.
More and more material coalesces to form a protostar.
The protostar continuse to accomulate material from the surronding disk and grow.
Eventually, the protostar becomes massive enough, dense enough and hot enough to cause the process of nuclear fusion to begin.
Nuclear Fussion isotops of hydrogen atoms (deuterium, tritium) combine to form helium atoms, energy, and subatomic particles.
Once nuclear fusion begins the protostar's “ignition” to nuclear fusion creates a solar wind that drives remaining gas and dust to the outer parts of the disk.
Then the young star stops accumulating material.
True.
People began to settle Sumer around 4500BCE. The Sumerians were in control of the area by 3000BCE. Their culture was comprised of cities such as Eridu, Nippur, Lagash, Kish, Ur, and Uruk.
I would say that this is true, I don’t know much about it but I’ve read that they do release toxins
Answer:
Which two details from the short story excerpt BEST support the correct answer above? A) "As if that could have anything to do with --with--My, wouldn't they laugh?" (section 1) "But you know juries when it comes to women. If B) there was some definite thing--something to show." (section 2) "No, Mrs. Peters doesn't need supervising. For that matter, a sheriff's wife is married to the law." (section 3) D) Then Martha Hale's eyes pointed the way to the basket in which was hidden the thing that would make certain the conviction of the other woman-- (section 4) Martha Hale snatched the box from the sheriff's wife, and got it in the pocket of her big coat just as the sheriff and the county attorney came back into the kitchen (section 5) E)
<em>Full Question:</em>
<em>Which tissue is correctly paired with its primary cell type?</em>
<em>bone: fibrocyte</em>
<em>bone: osteoblast</em>
<em>connective tissue proper: chondroblast</em>
<em>cartilage: fibroblast</em>
Explanation:
<em> </em><u><em>bone: osteoblast</em></u>
<u><em></em></u>
<u><em></em></u>
Osteoids comprise, significant sections of the entire bone matrix, and this includes fibers of collagen which give bone its flexibility and mechanical strength this allows born to resist stretching and twisting forces.
Osteoblasts are highly specialized cells within bone which formulate new bone through the production or secretion of parts of the organic matrix; this is referred to as the osteoid and mediate the calcification (fortification with allium) of osteoid during the formation of mature bone matrix.
Learn more about bone growth and development at brainly.com/question/6957100
#LearnWithBrainly
