I would center the specimen first because if you look first through the lens, there is such a large amount of zoom that you wouldn't be able to tell if you are looking at the correct area.<span />
Answer:
B and C.
Explanation:
i learned this a few days ago :)
(good luck w ur work)
<span>Prenatal stage of a human beyond 8 weeks of development after fertilization.is the answer hope this helps </span>
<span>A
human karyotype is constructed from chromosomes visualized in somatic
cells. Those chromosomes are called autosomes.
The autosomes are arranged according to size and numbered 1 to 22</span><span>
each
chromosome consists of two </span><span><span>identical chromatids</span> (</span><span>2 identical copies formed by the replication of a chromosome)</span>
The satellite map was the first one in the ecosystem
