Heart rate or pulse I think.
Geological change will not cause a mass extinction, because it happens on a too big scale - on the scale of millions of years. During such long time, it is more likely that other causes will influence the survival of extinction of species, such as climate change or environmental disasters, and even if there is a small influence, it would not be significant next to other causes.
That the Red flowers are a dominant trait, and the white flowers would be recessive.
The Red Flowers are Homogenous Dominant
In a punnet square, The Genotype ratio for the red flowers would be 2:2
The phenotype would be 4:0
For the white flower
The Genotype would be 1:1
and the phenotype would be 1:0
The white flowers are Homogenous recessive
