Answer:
Species name should both be lowercase
Explanation:
According to the rules of binomial nomenclature:
1. The scientific name of an organism is represented by two names- the first genus and the second by its specific epithet.
2. The first alphabet of the genus should be in the uppercase and the first alphabet of the species will be the lowercase.
In the given question the scientific name of humans has been provided as Homo Sapiens in which the first alphabet of the specific epithet is provided in uppercase which must be in the lowercase as "sapiens".
Thus, species names should both be lowercase is correct.
The reason why taq polymerase is used is because it is thermostable, meaning that it can remain intact and reactive after being exposed to the cycles of high temperatures that are used in PCR (an upwards of 94 degrees Celsius). If human DNA polymerase were used instead, it would immediately unfold and become inactive after the first round of high temperatures, effectively ceasing the PCR.
A.
Variation in species --> natural selection --> differential reproduction --> heredity --> evolution
B.
Heredity --> variation in species --> differential reproduction --> natural selection --> evolution
C.
Variation in species --> differential reproduction --> heredity --> natural selection --> evolution
