hey guys which one is written correctly ?

Question

Felis domestica
Felis Domestica
felis domestica
Felis domestica
felis Domestica

2}The Hardy-Weinberg formula

is useful in determining the extent to which a sexually reproducing population is evolving.
is used to predict when genetic drift will occur in a sexually reproducing population
is useful in determining the extent to which polyploidy is occurring in specific plant populations.
is used to predict when specific groups of organisms will become extinct.
all of these answers are correct.

Answer 1

1&4