Answer:
Number of bacteria required 
Explanation:
Given -
Size of each bacterium
micrometers long
These bacteria are arranged end to end.
The size of chain to be formed is equal to
centimetres
Let us say that in forming a chain of
centimetres nearly X number of individual bacterium are required.
hence, number of bacterium required to form
centimetres chain can be represented as

Number of bacteria required 
Answer:
Sulfur can also fall directly from the atmosphere in a process called fallout. Also, the weathering of sulfur-containing rocks releases sulfur into the soil. These rocks originate from ocean sediments that are moved to land by the geologic uplifting of ocean sediments.
I would think that an unweathered rock would be jagged while a weathered rock would be smooth because of water/wind or what ever weathered it.
Conventional in vitro fertilization refers to the development of embryos in the laboratory conditions, intracytoplasmic sperm injection refers to the add of sperm cytoplasm to the egg cell, laser-assisted hatching helps the egg cell to reach the zona pellucida while artificial insemination helps to development of a zygote by artificial fertilization.
<h3>What does assisted reproductive technology mean?</h3>
The medical term assisted reproductive technology makes reference to all methods and strategies aimed at enhancing or helping the development of the zygote or embryo after fertilization, which may be in vitro fertilization (laboratory conditions) or in vivo conditions into the reproductive system.
Therefore, with this data, we can see that assisted reproductive technologies refer to a broad differential category of strategies and methods aimed at helping with the development of zygotes and embryos in the reproductive system of a woman or in the lab conditions.
Learn more about assisted reproductive technology here:
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