If organisms are unable to generate enough genetic diversity to survive in a changing environment, they

Sometimes go extinct is the correct answer.

Explanation:

Genetic variation or diversity is very important for a species if it wants to survive. This diversity is basically the very first step of evolution, where adaptation is also involved. So, if a population with low genetic diversity is exposed to a disease, the population might eventually disappear because it cannot adapt to the new context.

emily ruth's annual premium is $1058.50

step-by-step explanation:

emily ruth is a female of 27 years age purchasing 20 year endowment insurance with face value $25000.

from the given table,

for females, the age of a male 3 years younger should be used.

so, we have to check for 24 year male for 20 year endowment.

it is 42.34 for every $1000 face value.

for a face value of $25000,

it is 25 * 42.34 = $1058.50

∴ emily ruth's annual premium is $1058.50

d. air pressure decreases as altitude increases.