Answer:
The options to complete the question are
A. Multiply 900 by 50,000.
B. Estimate the species density and then multiply by 50,000.
C. Divide 900 by 600 and then multiply by 50,000.
D. Multiply 600 by 50,000.
The CORRECT ANSWER IS D
D. Multiply 600 by 50,000.
Answer: Option B
Explanation:
The disease like Hepatitis B may establish a chronic infection in which the disease can get transferred from one person to another even when the symptoms are not visible.
The disease can said to be completely controlled only when there is no carrier state left for the disease in the body of the organism.
The disease is more deadly when it is transferred without showing any symptoms in the body. It can eradicate only when there is no carrier of the disease for a very long period of time.
Answer:
in a snug or hidden place
All a human's body parts are fully developed by the end of the second trimester of pregnancy.
Answer: Option A
<u>Explanation:</u>
The second trimester lasts from 13th Week to 28th Week. At the end of 28th week the child's organs become completely created during the second trimester. The child can likewise begin to hear and swallow. Little hairs become perceptible.
Later on in the subsequent trimester, the child will start to move around. It will create dozing and waking cycles that a pregnant lady will start to take note.
E. coli are a species of bacteria. Like all bacteria, they have a round piece of DNA that contains most of their genetic information, but also plasmids, that contain some more. Plasmid can be passed on from bacterium to bacterium and they contain information for fighting antibiotics. Tetracycline is such an antibiotic. The process of putting a plasmid inside a bacterium is called transformation. So what the above sentence really says, is that a bacterium just got a plasmid that is probably holding the genetic information to produce proteins that fight antibiotics like tetracycline. While regular strains of E. coli might not be able to deal with tetracycline, transformed strains will probably be able to survive it. Hence, the culture will have live bacteria and the bacteria that have a plasmid against tetracycline will be favored and survive.