¿Cuál de las siguientes tendencias se observa en el transcurso del tiempo durante la evolución de los humanos? a. Aumento del tamaño cerebral
b. Disminución del tamaño corporal
c. Reducción del número de dedos de los pies
d. Aumento del tamaño de los dientes molares y caninos

Basalt rock can be rough or maybe smooth

Paired homologous chromosomes, separate from each other and migrate to opposite poles of the nucleus. this segregation process occurs during both mitosis and meiosis.

In order to understand the problems of unwanted infertility in a country — the gambia — where the desire for children and the fertility is very high, a population-based survey was undertaken. all infertile women in 24 randomly selected enumeration areas were assessed. the study included a review of the problems faced and coping mechanisms employed by infertility clients and types of health care available for infertile couples in the different types and levels of the formal and traditional health system. half of the infertile couples failed to seek formal health care, and they have to reach a certain level of care in order to be properly managed. alternative care is often sought. child fostering is also a frequent solution to childlessness. in-depth interviews revealed that traditional care like healers and spiritual leaders are frequently consulted long before formal health care. this delay could be a problem in those cases where infertility is caused by infections.