The diploid germ cells that have the potential to develop into ova are called oogonia. In humans, all of a female's oogonia that she will make in her lifetime are created when she's still a fetus and hasn't even been born yet.
How do hummingbirds reproduce? To attract hummingbirds to a garden or feeder, rich, bright colors should be used. Red is known to attract hummingbirds from afar but does not have to be the sole color used. Hummingbirds like both annuals and perennials, as long as the colors in the flowers are vibrant.
If you never seem to be able to attract hummingbirds to your yard, try one or more of these tips, and you should see hummers at your feeder soon! All hummingbird feeders that are purchased these days have red on them somewhere,but if you are in doubt that there is enough red, try tying a red ribbon on the feeder.