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.
These eight tips for feeding hummingbirds are sure to help you attract hummingbirds by appealing to their hungry attitudes. 1  of 08. Provide Natural Food Sources. 2  of 08. Feeders filled with a classic nectar recipe can help birders attract more hummingbirds and save money over more expensive commercial nectar mixes. 3  of 08.