Create an account
most of the non-cellular fluid in ejaculated human semen is composed of
the secretion of the seminal vesicles
in humans, the follicular cells that remain behind in the ovary following ovulation become
a steroid hormone synthesizing structure called the corpus luteum
animals with reproductive dependent on internal fertilization need not have
internal development of of embryos
what form of reproduction can produce diverse phenotype that may enhance survival of a population in a changing environment
environmental cues that influence the timing of reproduction generally do so by
direct effects on hormonal control mechanisms
Please allow access to your computer’s microphone to use Voice Recording.
Having trouble? Click here for help.
We can’t access your microphone!
Click the icon above to update your browser permissions and try again
Reload the page to try again!Reload
Press Cmd-0 to reset your zoom
Press Ctrl-0 to reset your zoom
It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.
Please upgrade Flash or install Chrome
to use Voice Recording.
For more help, see our troubleshooting page.
Your microphone is muted
For help fixing this issue, see this FAQ.
Star this term
You can study starred terms together