Examples of surface tension:
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Walking on water: Small insects such as the water strider can walk on water because their weight is not enough to penetrate the surface.
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Floating a needle: A carefully placed small needle can be made to float on the surface of water even though it is several times as dense as water.
Answer:
a. This is actually a case of frequency-dependent selection. With too many cheaters in a population, the fruiting body's stalk is not built well, and all individuals have lower fitness.
Explanation:
Frequency dependent selection is a process in evolution whereby the
a gene, genotype or phenotype varies depend on the percentage of that gene, genotype or phenotype that is present in the population.
There are two types of frequency dependent selection:
a. Positive frequency dependent selection.
b. Negative frequency dependent selection.
Definite volume is doesn’t possess a definite volume so therefore the answer is c
A pollutant is a substance or energy introduced into the environment that has undesired effects, or adversely affects the usefulness of a resource.
