Bud, age 10, was born with short fingers, slanted eyes, and a protruding tongue. he is moderately intellectually disabled. his parents were both in their forties when he was born. he probably has the form of intellectual disability called and he has a high likelihood of developing .

a. down syndrome; heart problems

b. alzheimer's disease; fetal alcohol syndrome

c. fetal alcohol syndrome; alzheimer's disease

d. microcephaly; heart problems

The correct answer is option a. "down syndrome; heart problems".

Explanation:

Down syndrome is a disorder that is developed in people with an extra chromosome 21. People with Down syndrome are intellectually disabled and have the physical characteristics of having short fingers, slanted eyes, and a protruding tongue, as well as a decreased musculature, a short neck and a small head. Children with Down syndrome usually suffer from heart problems, the most common being the Atrioventricular Septal Defect.

The correct answer is: a) down syndrome; heart problems.

Explanation:

Down Syndrome is a genetic disorder that is caused by the appearance of an excess chromosome in pair 21 (trisomy 21). This excess chromosome, most of the times, is a result of an error in the meiosis in one of his parent's gametes.

Down Syndrome is much more likely to occur as the age of the mother progresses. This disorder, since it happens because of a BIG excess in genetic material, it has many repercussions all over the body.

Some of the symptoms of Down Syndrome include particular facial features, intellectual disability, and higher risks of heart problems and cancer.

the correct answer is: b. pantala flavescens, because these organisms would have a high level of genetic variation due to sexual reproduction.  

because involves two organisms (parents) whose genetic material combines, sexual reproduction leads to genetic variation in new generations of offspring. the offspring is an unique organism, with new genome, more protected with the higher ability to adapted. this process is fundamental to evolution.