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.
Bright flowers stand out from the monotony of green grass. Flowers are a beautiful addition to gardens, creating spots of color and producing scents that float on the breeze. Some gardeners choose flowers based on their colors and fragrances, inadvertently attracting other garden visitors when planted en masse.The bright colors and pleasant aromas of these plants are easy for potential pollinators to detect from far afield.ummingbirds are the primary non-insect pollinators of flowering plants, with their own special flower-based cues. Since birds don't respond to olfactory signals, flowers that rely on hummingbird pollination have developed bright red or orange flowers with lots of nectar inside.