Answer:
This indicates that the expression of genes depends partly on environment.
Explanation:
The case shown in the question is showing a situation where there was a genetic interaction with the environment, resulting that gene expression depends in part on the environment.
Gene and environmental interactions are revealed by penetrance and expressiveness. Penetrance is the percentage of individuals with a given gene that have a phenotype linked to this gene, such as children and parents who have the same height. In cases of penetrance, a genotype may not express the expected phenotype due to gene influences and environmental effects, as happened to the couples' children shown in the question.
If jorge is<span> feeling sluggish and having trouble concentrating in class, he should (option A) go to sleep earlier. So he could have enough amount of time to sleep (between 8 and 9 hours depending on each person), his brain and body would rest properly and he is going to feel better in the morning. If he does this every day and respect his night sleep, he won´t have any of these problems in the future. </span>
It provides water and a way of transportation.
