Even though the punnett square calculates that a couple has a 50/50 chance of producing a male or female, there are slightly more females born in the human population. why might this be? sperm carrying the y chromosome swim slower and often lose the race to the egg. girls are stronger in embryonic development. females produce more x chromosomes. all of the above are correct.

What best describes the dropping height of a ball that bounces back up to a height of 45 cm

What’s the student’s scientific question

Cladistics is a way of classifying organisms by examining the characteristics of their ancestors and descendants and depicting the relationships in a cladogram. which of the following best describes a challenge in classifying organisms this way? a. there are millions of species on earth, and a cladogram is not a practical means for classifying all of them. b. it is impossible to tell which organisms are most closely related to each other using a cladogram. c. cladograms are detail-oriented and do not provide a useful understanding of evolutionary relationships. d. there is a limited number of ways to organize the information, so most cladograms end up looking very similar.