THE ANSWER IS C.) MITOTIC DIVISON
I GOT IT RIGHT ON USATESTPREP...
<span>prophase I. the chromosomes condense, and the nuclear envelope breaks down. ...Metaphase I. pairs of homologous chromosomes move to the equator of the cell.Anaphase I. homologous chromosomes move to opposite poles of the cell.Telophase I and Cytokinesis. ...Prophase II. ...Metaphase II. ...Anaphase II. ...<span>Telophase II and Cytokinesis.</span></span>
The medulla oblongata is a primary respiratory control center. It’s main function is to send signals to the muscle that controls respiration to cause breathing to occur. There are two regions in the medulla that control respiration the ventral respiratory group stimulates expiratory movement.
<span>a.
identifying several solutions to a problem
b.
questioning source information
c.
implementing the first solution to a problem identified
d.
verifying source information</span>
Answer:
12
Explanation:
Suppose the four different strains are P, Q, R, S. Thus, the first infection can be from any of the four strains and it occurs in 4 ways.
Since an individual cannot be infected again with the strain from which he/she is been previously infected;
Then, at the second time;
The possible number of strain to be infected with = 4-1 = 3 ways
Thus; the number of possible different levels of severity can be viewed by forming two lettered word P, Q, R, and S without repetition which is:
= 4 × 3
= 12
