Answer:
b. A Wood's light examination
Explanation:
A wood lamp examination is a test that uses ultraviolet light to examined a skin infected with bacteria or fungal infection.
No it is not possible since there can be dominated or recessive alleles involved. A heterozygous for a specific gene can display the same phenotype as a homozygous for the same gene.
It can be confusing because it isn't specific enough. In astronomy, the big dipper is not a spoon. It is a bear. Scientists know it as Ursa Major rather than a dipper or bear.
If the producer were to disappear then all the other organisms will either go extinct, survival of the fittest, or have to adapt to the change.