1) While discussing their findings, authors have ignored a main threat to the validity of their estimates of the exposure. Explain and discuss this error. State the alternative study design must overcome this problem and also explain why? Rate the study’s internal validity; low, medium or high. Explain this systematically […]

Q. In humans, oogenesis in comparison to spermatogenesis is different in that? A) cytokinesis is unequal during the meiotic divisions B) mature ovum has not yet completed its second meiotic division C) first meiotic division is not completed unless the egg is reactivated by a hormone. D) Sequence from primary […]

We share patterns with nonhumans in terms of physiological development. We appear to share universal human traits in terms of the roles adolescents assume and the evolved psychology of adolescents. When do we expect to see the patterns that we see in traditional populations appear in the fossil record? What […]

1. What is the major morphological difference between mammalian red blood cells and avian red blood cells?2. Give a hypothesis for the above observation.3. Describe the shape of mammalian red blood cells, and give a reason why this shape may be advantageous considering the main function of red blood cells […]