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Why did all the pollen grains come from the same healthy plant?
They must come from the same plant so they are all identical & the only variable is sugar concentration.
What is the difference between pollen and pollen grain?
Microscopic differences in shape and size.
Why do flowers have so many pollens grains and ovules?
For pollen grains, the answer is easy - not all pollen will reach another flower, it has to depend on wind or an animal vector, and some may be lost to rain or being brushed off by a non-pollinating organism that happens to come in contact with the pollen. So the more pollen produced, the better the chance that some will reach its intended target. For the number of ovules, this isn't well known. It's often thought to be related to the primitive or advanced development of the plant species. As a plant becomes more "advanced", the number of parts generally decreases, often through fusion of the parts.
Why does plants have petals?
Plants flower for one simple reason: pollination. The bright coloured flowers and the scent attracts insects towards them. While the insect is sucking the nectar, the pollen grains get attached to its hairy skin. Then this insect visits another flower and the pollen grains might get deposited on the stigma. There you go, the flower has been fertilized and very soon, it wil become a fruit. Now you will ask why does it become a fruit? Here's why: To distribute its seeds.
Why does pollen stick?
Bees brush the pollen from their bodies down into special parts of their hind legs called corbiculae. These are dished areas which are surrounded by hairs to hold the pollen. When they get back to the hive they put the pollen into honeycomb cells for storage. thank you
Why did all the pollen grains come from the same healthy plant?
They must come from the same plant so they are all identical & the only variable is sugar concentration.
What is pollinination?
Pollination means transfer of pollen grains from anther to stigma in plants.
How many pollen grains are deposited into the female flower?
as many that stick to the stamen. it differs from plant to plant and it also depends on how many pollen grains stick to the insect that carries it. though once the pollen grain comes into contact with the stamen a pollen tube is created to reach the ovary. then two "sperm" come from this tube and one fertalizes the egg and one become the endosperm for nutrients for the egg/seed
In what structure do the pollen grains come in contact with the ovule?
amswer stigma
What must happen to pollen grains in order for pollination to occur?
True pollen comes from artichokes in which farts come from natural gas.
Why do flowers have many pollen grains and ovules?
For pollen grains, the answer is easy - not all pollen will reach another flower, it has to depend on wind or an animal vector, and some may be lost to rain or being brushed off by a non-pollinating organism that happens to come in contact with the pollen. So the more pollen produced, the better the chance that some will reach its intended target. For the number of ovules, this isn't well known. It's often thought to be related to the primitive or advanced development of the plant species. As a plant becomes more "advanced", the number of parts generally decreases, often through fusion of the parts.
How do flowers help a plant?
Flowers aid a plant in reproducing. Bees come and get pollen from a flower, and in the prosess take pollen from the male part of a flower and it is then placed on the female part. The pollen then produces a pollen tube and will soon become fruit or seeds.
What is the difference between pollen and pollen grain?
Microscopic differences in shape and size.
How does pollination take place in flowering plants?
Pollination is the process of transferring male pollen grains to the stigma of the plant (either the same plant = self-pollination, or another related plant close by = cross-pollination). The pollen grains germinate and grow down the style of the plant where the fuse with the female ovules, this results in an embryo being formed, which then becomes the seed of the plant. Pollination is aided by various (so called) "agents" or "vectors", these are things that assist in moving the pollen grains from the anther to the stigma. Vectors/ agents include: wind, insects (bees, butterflies, ants, moths etc.) water in some cases, animals (cats, dogs, sheep, cows, humans etc.)
Why do flowers have so many pollens grains and ovules?
For pollen grains, the answer is easy - not all pollen will reach another flower, it has to depend on wind or an animal vector, and some may be lost to rain or being brushed off by a non-pollinating organism that happens to come in contact with the pollen. So the more pollen produced, the better the chance that some will reach its intended target. For the number of ovules, this isn't well known. It's often thought to be related to the primitive or advanced development of the plant species. As a plant becomes more "advanced", the number of parts generally decreases, often through fusion of the parts.
Can you get hayfever in the dark?
Hay fever is an allergy to plant pollen. You can have it any time you come into contact with pollen. It doesn't matter if it's day or night.
What is the prupose of flower petals?
The petals are colored and may be scented so that they attract insects. When insects come to the plants, they carry sticky pollen on their legs and/or wings. They also pick up pollen from the plant that attracted them. This transfer of pollen from plant to plant is called pollination and is how the plants produce seeds to reproduce.
