Answer:
Bifocal lenses are used for people who are both nearsighted and farsighted. It is common for people who are over the age of 40 to begin to notice a change in their vision and require the need for bifocals. As we age, our eyes begin to have trouble focusing on objects at different distances away.
Explanation:
Answer:
constant temperature, the volume of a gas sample is inversely proportional to the pressure.
Pressure: P1 = 0.980 atm
Volume: V1 = 6.20 L
Explanation:
I hope this answer helps
Explanation:
1) Chromosomal Abnormality is an extra chromosome at 18
Gender is Male because chromosome 23 has one X chromosome and one Y chromosome.
Disorder name is Edwards Syndrome
2) Chromosomal Abnormality is an extra chromosome at 21
Gender is Female because chromosome 23 has two X chromosomes
Disorder name is Down Syndrome
Answer:
Option B, Cellular clock theory
Explanation:
The Cellular Clock Theory of Aging states that the older the cells get , the more they become incapable of reproducing or replicating. The telomeres (tip of the chromosomes) are DNA sequences which cap the chromosomes get smaller in size with time and eventually they hinder the cell division. As per a normal standard rate, a telomere replicates 70 to 80 times in its life span and then it stops replicating.
Hence, option B is correct
Streak isn't a category for the luster of the minerals.
<h3><u>Explanation</u>:</h3>
Luster is the property of a metal which marks the shiny and bright property of the metals. The elements are divided into two categories based on their shining property.
One class is very shiny and light can undergo direct reflection from its surface. They are the lustrous substances, mostly metals. They are said to have metallic luster.
The other group has the gross, greasy, waxy, pearly appearance which dont have any shiny property. They are said to have non metallic or submetallic luster.
