Pollen
in sentence
92 examples of Pollen in a sentence
Studying
pollen
grains and radiolaria and carbon molecules helped us devise the most efficient structural solution using hexagons and pentagons.
Now the way that plants transmit that information is through
pollen.
And there is as many different kinds of
pollen
as there are flowering plants.
Most
pollen
that causes hay fever for us is from plants that use the wind to disseminate the pollen, and that's a very inefficient process, which is why it gets up our noses so much.
Because you have to chuck out masses and masses of it, hoping that your sex cells, your male sex cells, which are held within the pollen, will somehow reach another flower just by chance.
So all the grasses, which means all of the cereal crops, and most of the trees have wind-borne
pollen.
But most species actually use insects to do their bidding, and that's more intelligent in a way, because the pollen, they don't need so much of it.
The insects and other species can take the pollen, transfer it directly to where it's required.
The plant gets something, and the hawk-moth spreads the
pollen
somewhere else.
These are the anthers of a lily, cleverly done so that when the unsuspecting insect lands on it, the anther flips up and whops it on the back with a great load of
pollen
that it then goes to another plant with.
And there's an orchid that might look to you as if it's got jaws, and in a way, it has; it forces the insect to crawl out, getting covered in
pollen
that it takes somewhere else.
And when the insect gets there and lands on it, dousing itself in pollen, of course, that it's going to take to another plant, if you look at the every-home-should-have-one scanning electron microscope picture, you can see that there are actually some patterning there, which is three-dimensional.
To the right species of bee, this looks like another very aggressive bee, and it goes and bonks it on the head lots and lots of times to try and drive it away, and, of course, covers itself with
pollen.
And the plant showers them with pollen, and off they go and pollinate.
It confused me; why did these allergy symptoms persist well past the
pollen
season?
They'd looked at dental calculus under a microscope, and what they had found was things like
pollen
and plant starches, and they'd found muscle cells from animal meats and bacteria.
So we know flowers, we know fruits and vegetables, even some alfalfa in hay that the livestock for the meats that we eat, rely on pollinators, but you've got male and female parts to a plant here, and basically pollinators are attracted to plants for their nectar, and in the process, a bee will visit some flowers and pick up some pollen, or that male kind of sperm counterpart, along the way, and then travel to different flowers, and eventually an apple, in this case, will be produced.
Perhaps there's more
pollen
in the city.
With the trains coming in to urban hubs, they can carry
pollen
with them, very light pollen, and it's just a big supermarket in the city.
You just mix up some pollen, sugar and water, and whatever active ingredient you want to put in, and you just give it right to the bees.
So this, for example, when you see bees flying around these little plants, and they're collecting pollen, those
pollen
grains that they're collecting, they pack into their legs and they take it back to the hive, and that's what makes the beehive, the wax in the beehive.
So that's thousands of little grains of
pollen
there, and there's the pistil there, and these are the little things called trichomes.
That's a geranium
pollen.
Bees get all of the protein they need in their diet from
pollen
and all of the carbohydrates they need from nectar.
These people are moving
pollen
from flower to flower with a paintbrush.
Now this is because the
pollen
within a tomato flower is held very securely within the male part of the flower, the anther, and the only way to release this
pollen
is to vibrate it.
So they vibrate the flower, they sonicate it, and that releases the
pollen
in this efficient swoosh, and the
pollen
gathers all over the fuzzy bee's body, and she takes it home as food.
Fifty years ago, beekeepers would take a few colonies, hives of bees into the almond orchards, for pollination, and also because the
pollen
in an almond blossom is really high in protein.
Recently, researchers from Penn State University have started looking at the pesticide residue in the loads of
pollen
that bees carry home as food, and they've found that every batch of
pollen
that a honeybee collects has at least six detectable pesticides in it, and this includes every class of insecticides, herbicides, fungicides, and even inert and unlabeled ingredients that are part of the pesticide formulation that can be more toxic than the active ingredient.
If one of these neonics, we call them, is applied in a high concentration, such as in this ground application, enough of the compound moves through the plant and gets into the
pollen
and the nectar, where a bee can consume, in this case, a high dose of this neurotoxin that makes the bee twitch and die.
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