![]() Almost all its body is covered in thick, velvety, black and yellow hair caked with bright yellow pollen. ![]() This is a portrait of a bee, framing its head and the tops of its wings and torso. Shown is a colour, close-up, photograph of a bee's face, sprinkled with pollen. Pollen will stick to a pollinator’s body as it feeds on the flower’s nectar nectar. The colours and smells of flowers often attract pollinators. Likewise, certain mammals, like bats and rodents, move pollen between plants. Some birds, including hummingbirds, also play a part. Many pollinators are insects, like bees, butterflies, moths and beetles. Pollinators are animals that carry pollen between plants. This includes things such as pollen and ovules that develop at different times. Some plants have features that actually prevent self-pollination. Genetic diversity comes in handy when conditions change and organisms need to adapt to the change. The advantage of cross-pollination is that it helps keep a species genetically diverse. Cross-pollination happens when the wind or animals move pollen from one plant to another. Self-pollination happens when a plant’s own pollen fertilizes its own ovules. Other times plants pollinate other plants. Not all flowers are large and brightly coloured! Some flowering plants, like grasses, have flowers that are tiny and may even be green, which can make them hard to see. The pollen from another flower must enter the ovary and fertilize an ovule in order for a seed to start developing. This is where the eggs, or ovules, are located. ![]() ![]() The innermost part of the flower is the carpel. The carpel contains the ovary. Within the petals are the stamens. Each stamen contains a filament topped by pollen-producing cells. Petals on flowers are actually modified leaves. The outermost parts of the flower are green structures called sepals. These oval shapes are labelled "Ovules (eggs)."įinally, one of the two thin, pointed green structures below the base of the flower, at the top of its stem, are labelled "Sepal." This shows a long green structure through the centre of the ovary, with small oval shapes along each side. The ovary is also circled, with an arrow leading to the bottom left, smaller illustration. These are labelled "Pollen (in anther)." The thin, green structure holding up the anther is labelled "Filament." The yellow outer structure is labelled "Anther." A part of the anther is cut away to reveal tiny orange spheres inside. Three parts of the stamen are labelled in smaller font. One of these yellow parts i has been circled in black, with an arrow pointing to the smaller illustration on the bottom right. On either side of the pistal are long, thin, tapered green arms topped topped with yellow oval shapes. The wider, indented tip of this is labelled "Stigma". The long, thin, green structure above it is labelled "Style". The hollow, almond-shaped chamber at the base is labelled "Ovary". Three parts of the pistal are labelled in a smaller font. The flower has orange petals, one of which is labelled "Petal." A long, green structure extending up from the centre of the petals is labelled "Pistal," in large font. Parts of the flower are labelled with black text connected to small white circles with red lines. Two areas of this flower are magnified in separate, smaller illustrations in the lower left and right corners. In the centre of the image is an illustration of a whole flower. Shown is a colour diagram of the reproductive parts of a flower. Pollen must be moved to a part of the pistil called the stigma for reproduction to take place. The anther is the part of the stamen that contains pollen. Flowers contain male sex organs called stamens and female sex organs called pistils. This genetic diversity can help them survive if the environment changes.įlowering plants reproduce sexually through a process called pollination. As a result, the offspring are not genetically identical to either of the parent plants. Seeds produced through fertilization contain genetic material from both parents. The product of sexual reproduction are seeds. The genetic material from the male and female gametes combines to produce offspring. The parent plants have male and female sex cells, called gametes. Sexual reproduction requires genetic material ( DNA DNA) from two parents. Plants can create offspring offspring through either sexual or asexual reproduction. That means they need to reproduce in order to pass on their genes genes to future generations. Open Professional Learning × Close Professional Learning Open Educational Resources × Close Educational Resources
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