The dog is a member of genus Canis (canines) that forms part of the wolf-like canids. <span>Kingdom:Animalia. </span><span>Species:<span>C. lupus
</span></span>Within this family, cats<span> (Felis catus) are part of the genus Felis, which is a group of small </span>cats<span> containing about seven </span>species<span> (depending upon </span>classification scheme). <span>Kingdom:Animalia </span><span>Species:<span>F. catus</span></span>
When solutions of different osmolarities are separated by a membrane permeable to water, but not to solute, water will move from the side with lower osmolarity
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
LEVENE is the one who proposed the polynucleic model, stating that DNA and RNA were composed of nucleotides.