Answer: We all need them so we don't end up like asexual beings CLONES.
Explanation:
<span>The parent cell undergoes one round of DNA replication followed by two separate cycles of nuclear division. The process results in four daughter cells that are haploid, which means they contain half the number of chromosomes of the diploid parent cell</span>
Answer:
The correct answer would be = t = 2.112 billion years
Explanation:
Given:
The number of crystal of uranium = 275 billion
The number of crystal of lead = 1925 billion
The half-life for 235U = 704 million years
Formula using :
N = N0e−λt
where,
no. of daughter atoms = N
at time t= 0, No. of parent atoms = N0.
Time = T
Half life = 0.693/λ
Decay constant = λ
Solution:
by putting value in the formula of the half-life
λ = 0.693/0.704
λ = 0.9844
Now, putting value in the formula for the age of granite.
275 = (275+1925)e^-0.9844 t
1/8= e^-0.9844 t
e^0.9844 t = 8
taking log
0.9844t = 2.07944
t = 2.112 billion years
This phenomenon is a pain from the gallbladder. The pain of gallbladder illness nearly at all times has one of two reasons - gallstones or cholecystitis. Gallstones are stones that is created in the gallbladder. They differ in extent from a millimeter or two to a number of centimeters and are from cholesterol or bile colorings. Cholecystitis means swelling of the gallbladder. Even if, cholecystitis is most normally triggered by gallstones, there are other less common reasons too.