Lactose intolerance:
a. results from the lack of lactase
b. can be influenced by the environment
c. has a genetic basis
d. all of these
e. is a good example of biocultural evolution

The answer is A: results from the lack of lactase

Explanation:

Lactose intolerance is caused by the lack of the enzyme lactase, necessary for digestion. Their symptoms usually occur 30 minutes after eating the food with a feeling of nausea, bloating and vomiting. It can occur from the first months of life as well as in adulthood.

answer:

to with mild choking in an adult or child over 1 year old: encourage them to keep coughing to try to clear the blockage. ask them to try to spit out the object if it's in their mouth. don't put your fingers in their mouth to them as they may bite you accidentally.

explanation:

Call 911, whats going on are her eyes white?