What is one difference between a primary oocyte and a secondary oocyte in humans?
a primary oocyte contains 46 chromosomes, while a secondary oocyte contains 23 chromosomes.
a primary oocyte is produced after birth, while a secondary oocyte is produced before birth.
a primary oocyte develops in both men and women, while a secondary oocyte develops only in women.
a primary oocyte is the product of meiosis, while a secondary oocyte is the product of mitosis.

Recent research by marine biologists suggests that bottlenose dolphins have names for themselves. scientists played sounds they had identified as the names of particular dolphins, putting them through a synthesizer so that they did not sound like the voices of particular dolphins. the researchers found that dolphins would respond to the names of other dolphins that they were related to or associated with, but they ignored the names of strangers. this discovery suggests a much greater degree of self-awareness in aquatic mammals than was previously suspected. if this research holds up, what does it suggest about dolphins?

Procedure in pregnancy to have access to fetus. what do you call this procedure?

Which organelle will regrow during telophase?