Answer/ Explanation:
If an animal is more visible to predators, it is more likely to be caught and killed than an animal that is more hidden.
Therefore, in this case, light green frogs will be caught by predators more often. This reduces their likelihood of surviving to reproductive age and being able to pass their genes on to their offspring.
In contrast, frogs that are dark green will be more able to avoid predators, increasing their chance of being able to pass their genes on to offspring.
Therefore, if there are more green frogs reproducing and passing their information on to the next generation, then there will be an increased frequency of the alleles responsible for producing a dark green colour, whereas the alleles for the light green colour will reduce in frequency. This how the process of natural selection occurs.
A multicellualr organism, also absorbs organic material.
I would say C.
Dams don't use any chemical means to get their energy output, so B and D are out. A converts to potential energy which can't produce electricity without being set in motion, so it doesn't work. That leaves B, which makes sense. Potential energy to mechanical energy to electrical energy.
A sound wave traveling through air is a classic example of a longitudinal wave.
We solve the problem using the Hardy-Wineberg equation.
Let us start with the homozygous dominant number of red toes trait,
∴ p² =
= 0.4
We have the frequency for red toe trait as p =
= 0.63
Solving for the frequency of white toe trait by using the fact that,
p + q = 1
∴ q = 1 - p = 1 - 0.63 = 0.37
Now we can calculate 2pq in p² + 2pq + q², which is the frequency for pink toes.
∴ 2pq = 2 x 0.63 x 0.37 = 0.47
Therefore, in a population of 1000 people, 47% have pink toes.
Hence 47% of 1000 will be 470.
The answer is 470.