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In conifers such as pines sperm contained in pollen grains are primarily transferred to an egg by what?
In conifers, such as pines, sperm contained in pollen grains are primarily transferred to an egg by wind pollination. This process involves the dispersion of pollen from male cones to female cones through the air. Once the pollen reaches the female cone, it fertilizes the egg to form a seed.
What is the difference between pollen and pollen grain?
Pollen refers to the microscopic reproductive structures produced by plants, while pollen grains are the individual units that carry the male gametes. Pollen grains are released from the anthers of flowers and are carried by wind or pollinators to fertilize the ovules of plants.
The purpose of a pollen grain on a flower?
The purpose of pollen is to transfer the male reproductive cells (sperm) to the female reproductive cells (ovules) and thus to allow sexual reproduction. Pollen can be so transferred by many methods - wind, gravity, insects, etc. The pollen receptive part of the flower (the stigma) is often sticky, or textured so the pollen will stick. Once attached the pollen grain grows a tube into the stigma and down the style into the ovule. This tube allows the male gametes to fertilise the ovule, creating a seed.
How does pollen get fromone flower to the next for pollination?
Pollen is transferred from one flower to another through various methods such as wind, water, insects, birds, and other animals. This transfer allows for pollination to occur, enabling the fertilization of the plants and the production of seeds.
Give two ways by which pollen grains are scattered?
animal dispersal and wind dispersal
How does a pollen grain get to the stigma of a pistil?
It could be done by animal pollination , wind pollination or even self pollination.
How does pollen get from the anthers to the stigma?
It is transferred by wind or bees.
What is one way that pollen can get from the anther of a flower to the stigma of another flower?
It is transferred by wind or bees.
How will you describe at least two ways in which pollen is transferred from one plant to another?
Pollen can be transferred by flying insects flitting from flower to flower. A noted cross-pollinating insect is the bee. Pollen can be transferred by the wind blowing pollen into the air (grasses, some trees, are wind pollinated). Wind pollination brings misery to many who suffer from hay fever at certain times of the year.
In conifers, such as pines, sperm contained in pollen grains are primarily transferred to an egg by?
Wind.
What is the anthers job in a flower?
To collect the pollen grains transferred from the bees, wind or insects that have rubbed it and left pollen grains
What is the process by which animals wind and rain transfer pollen to the pistil of a flower?
Pollination is the process of how pollen is transferred by insects, wind, or rain to the pistol of a flower. This is essential to the fertilization of a plant.
In conifers such as pines sperm contained in pollen grains are primarily transferred to an egg by what?
In conifers, such as pines, sperm contained in pollen grains are primarily transferred to an egg by wind pollination. This process involves the dispersion of pollen from male cones to female cones through the air. Once the pollen reaches the female cone, it fertilizes the egg to form a seed.
How is pollen spread?
Insects, wind, animal fur and water.
Structures of plants that help them reproduce?
the way they are leaning can determine how the pollen or seeds get transferred by the wind
The transfer of a pollen grain to the pistil is called?
The transfer of pollen grains to the female reproductive structure, the pistil, is called pollination. This transfer can be mediated by the wind.
What is a way that pollen can be moved from flower to flower?
Pollen can be transferred by the wind or by insects such as bees. Some flowers are also pollinated by animals such as bats and hummingbirds.
