The initiative to have infants sleep on their back, rather than their stomach, has been associated with:

It has been associated with later crawling but not with later walking. The reality is that any baby who is a healthy child should be put to sleep on his/her back rather than on their stomach or sides by their mothers or whosoever takes care of them. This practice is really useful to lessen the dangers of sudden infant death syndrome.

advantage of using stem cells in medical research:

1.       it provides medical benefits in the fields of therapeutic cloning and regenerative medicine.

2. it provides great potential for discovering treatments and cures to a variety of diseases including parkinson disease, spinal cord injuries, diabetes, alzheimer’s disease and many more.

3. limbs and organ could be grown in lab from stem cells and then used in transplant or treat illness.

in the year 2850, humans successfully colonized mars. the martian modules that were constructed could hold only a small population of people. it is now a century later, and the population on mars has grown to 600 people. of the current mars population, 45 people express the recessive phenotype for phenylketon- uria (pku) syndrome (pp genotype).

explanation: