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.
Hummingbird favorites usually but not always have long, tubular blossoms that are red, orange, yellow or blue, especially blue Salvia species; the shape limits insect access to the nectar inside. Hummers like blossoms with lots of concentrated nectar, preferring sucrose. We've listed some of the best plant families for natural nectar below.