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A very long time, hundreds of millions of years. Ordinary pollen had to wait for the evolution of flowering plants, around 200 - 245 million years ago (Mya). But reproductive spores are known from much longer ago than that.
Palynology is the study of these remnants of ancient plants, and some sporangium are known from the Silurian. Ferns evolved in the next geological period, the Devonian, and there are ample specimens of fern spores from this period.
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Why do plants survive and grow even if pollen grains are cut off?
jelly fish eat plants
What happens to the pollen when it goes into the air?
Pollen can easily become airborne and when it does, it can be carried long distances. it will settle on plants and other flowers to help pollinate or it can get into homes and on cars, and if you are allergic to a particular pollen you may develop hay fever symptoms when you breathe it in.
What is advantages of a plant producing so much pollen?
Pollen protects the gametes from environmental dangers and allows the gametes to travel without water. This in turn allows the gametes to travel longer distances and to more diverse environments
How long do statues survive over time?
How do statues survive over time
After the pollen grains land on the stigma what begins to grow from a cell in the pollen?
the pollen tube
Do butterflies need pollen to survive?
Yes! Absolutely, they need an abundant supply to survive.
What do bee's need to survive?
the pollen they collect from the plants
How long can pollen stored in honeycomb keep bees alive?
The lifetime of the colony is the length of time that pollen stored in the honeycomb will keep bees alive. Bees make the honeycomb so that the cells will survive inclement weather and natural enemies. The nectar and pollen reserves service that generation that procures them and those that are being raised and that will be born that year.
Why do plants survive and grow even if pollen grains are cut off?
jelly fish eat plants
What is the function of a pollen tube?
The long tube
How does pollen help a plant survive?
Simply put it is the reproductive part of the plant.
What do rose eat?
they eat pollen
How long does bee pollen last What is it's shelf life for dried opis mallifics?
How long does bee pollen last What is it's shelf life for dried opis mallifics?"
What is the place where pollen developes and is stored?
Pollen is produced on the anther. The anther is supported by a long filament. The filament and anther together is called the stamen.
What does a bumblebee need to survive?
Bumblebees need nectar and pollen to survive. But during the winter most die, mostly only the queen bee lives to start the new bumblebee colony next year.
How long do pine tree release pollen?
seems like indefinitely
What does bee do when it sit on flower?
A bee lands on a flower in order to eat its pollen. This is the way that the bees survive, and feed off certain flowers.
