Lactase is an enzyme that breaks down the complex carbohydrate lactose into glucose and galactose, which can be absorbed by the bloodstream and carried to the body's cells. lactose is found primarily in dairy products. what would most likely happen to a person who had a shortage of lactase?
a. the person would be unable to fully digest dairy products.
b. the person would not be able to digest any carbohydrates.
c. the person would develop an allergy for dairy products.
d. the person's pancreas would not be able to regulate the body's blood glucose level.

B. the person would not be able to digest any carbohydrates. 
c. the person would develop an allergy for dairy products. 

1. true.2. true.3. true.4. false.5. true.the concept of darwin's theory of evolution involves the idea that there are limited resources in a given living environment and that the organisms which live within have variations in their genetic make up due to random mating. the ones with beneficial genetic variations can express certain traits which give them an upper hand in surviving and reproducing in the said environment compared to ones who may have a more disadvantageous variation in traits. over time, the organisms with an upper hand will survive and reproduce more frequently and pass on their beneficial genes while the others die. the result is evolution, where we observe (usually, but not always) eventually, phenotypic distinct changes.