Answer:
a. enclosing their DNA in a nucleus.
Explanation:
Prokaryotes in general have no membrane bound organelles. The cells are enclosed in a plasma membrane though .
If a hypothesis is supported consistently by different observations or experiments, it may be advanced to the level of a(n) <u>theory</u>.
Explanation:
1000 micrometer=1millimeter I.e.micrometer is 1000 times smaller than 1 millimeter
<span> Inside its enclosed nuclear membrane, it contains the majority of the cell's genetic material which this material is organized as DNA molecules, along with a variety of proteins, to form chromosomes.</span>