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.
In the following list of flowers commonly used for attracting hummingbirds, you'll see lots of red flowers, but also flowers in purple, white, orange, pink and blue. They're all rich in nectar, the hummingbird food par excellence. Nor is the diversity of plants for attracting hummingbirds restricted to color.Annuals and perennials, vines, shrubs, trees, bedding plants and hanging plants: you can choose from all these categories in selecting flowers for attracting hummingbirds.n the following list of flowers commonly used for attracting hummingbirds, you'll see lots of red flowers, but also flowers in purple, white, orange, pink and blue. They're all rich in nectar, the hummingbird food par excellence. Nor is the diversity of plants for attracting hummingbirds restricted to color.