Isotopes are forming and changing is not a associated function with necessity functions of a living organism.
Answer:
D. 48%
Explanation:
Using the Hardy-Weinberg equation;
p + q = 1
p² + 2pq + q² = 1
From the question,
64% of a remote mountain village can taste phenylthiocarbamide (PTC) = i.e p² = 0.64
and must, therefore, have at least one copy of the dominant PTC taster allele.
i.e 2pq
So. if p² + 2pq = 0.64
Then
p² + 2pq + q² = 1
0.64 + q² = 1
q² = 1 - 0.64
q² = 0.36
q = √0.36
q = 0.6
To find p; we have:
p + q = 1
p + 0.6 =1
p = 1 - 0.6
p = 0.4
SO for the percentage of the population that must be heterozygous for this trait (i.e 2pq)
we have:
= 2 × 0.6 × 0.4
= 0.48
= 48%
∴ the percentage of the population that must be heterozygous for this trait = 48%
<span>Larger stars burn through their Hydrogen reserves faster, fusing Hydrogen into heavier Helium.
Also, to maintain their phenomenal heat, they have to do this to maintain internal pressure and therefore the fusion that powers them, they have to burn quickly to replace the excess heat they radiate away into outer space.
Currently our sun radiates away 4 Million Tonnes of mass every second, that only amounts to a miserly 0.0000001% of its entire mass. Imagine how much mass larger and larger stars lose every second.
The smallest stars, born at the red dwarf level can burn for trillions of years (at closest estimate). Compared with the Supergiant's, the big boys who were born in abundance during the birth of the universe burn out and explode in supernovae after only around 200 Million years. A whisper compared to the life of our Sun which is estimated to run out of fuel after at the ripe of age of 10 billion years.</span><span>
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Answer:C
Explanation:
In order to draw a conclusion he needed to do an experiment based on his hypothesis first, then be able to conclude from his results if these breeds can real survive the cold weather.
The right answer is B active immunity.
For information, there is no complete immunity and incomplete immunity in immunology.
Active immunity is a form of immunity that protects the body through the production of antibodies when exposed to a first infection or vaccination.
This type of immunity is persistent. Example of measles: previously safe measles viruses are applied during vaccination.