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.
Red, especially, is a 'flashy' color. Neon green, sunny yellow, crimson, azure... the more pure the hue and brilliant the intensity, the more it draws not just the human eye, but animal eyes as well. Deer are color blind to bright orange, but hummingbirds attract most to bright red. If you're looking for brilliant contrasts, try cyan with bright orange.