D. in the nucleus
the process of making mRNA from DNA is called transcription, it occurs in the nucleus
There are three common and principal types of polysaccharide, these are the cellulose, starch and glycogen. They are<span> all made by joining together molecules of glucose in different ways.
</span><span>The polysaccharide that plants store in plastids is starch.</span>
The grassland preserve, without the lion pride, will have an increase on antelope and zebra, therefore decreasing the amount vegetation as they eat the vegetation, without a control in the population, this could be potentially dangerous for the preserve
(D)an atom can join with other kinds of atoms.
Basically he explained what a molecule is.
Amino acid itself a Monomer of Protein
Hope this helps!