Compare: Click on the Female button. For the female cell, proceed through meiosis until you reach the end of anaphase I. Up to this point, did you notice any differences between the development of male and female gametes?

Environmental differences within ecosystems are generally caused by

1. which of the following is correct regarding opiates/opioids: a. they all have a natural component as a starting pointb. they have low addiction possibilitiesc. methadone binds to some of the same receptorsd. a and care correcte. all are correct

Which of the following particles always has a positive charge? a. electronb. neutron c. proton d. ion