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this is simply due to the location where the species is found. a coastal species may have a different pollen shape to help with things such as salt resistant while a species found inland will be more heat resistant. it just depends on the type of environment in which the plant has adapted. yr 11 bio student

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5mo ago

Pollen grains are different shapes for different species to aid in effective pollination. The shape and size of pollen grains are adaptations that help ensure compatibility between pollen and the female reproductive structures of the same species. This variation helps reduce the chances of cross-pollination with other species and increases the likelihood of successful fertilization.

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Q: Why are pollen grains different shapes for different species?
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Adaptive value for the shape of pollen grains?

The shape of pollen grains can impact their ability to disperse through the air or be carried by pollinators to reach female reproductive organs for fertilization. Different shapes may be advantageous depending on the method of pollination employed by the plant species, such as wind or insect pollination. For example, spherical grains are often adapted for wind dispersal, while larger and more complex shapes may increase adherence to pollinators for insect-mediated pollination.


How are pollen grains adapted to help plant pollinations?

Pollen grains are adapted for plant pollination by being small, light, and easily dispersed by wind, water, or animals. They typically have a hard protective coating to withstand various environments and ensure successful delivery to the female reproductive organs of plants. Additionally, pollen grains often have unique shapes or structures that help them adhere to pollinators or specific female plant structures for successful fertilization.


What is adaptive radiation and give an example?

Adaptive radiation is the diversification of a single ancestral species into multiple species that occupy different ecological niches. An example of this is the finches of the Galapagos Islands, which evolved into different species with various beak shapes to exploit different food sources, leading to their adaptation to different environments on the islands.


How many kinds of leaves are there?

There are about 250,000 to 400,000 known species of plants with leaves, each with different shapes, sizes, and structures. However, the exact number of distinct leaf shapes or types is difficult to quantify as it can vary depending on classification criteria and definitions.


What is the cause for sand grains to round?

Sand grains become rounded through a process called abrasion, where they rub against each other or other surfaces. This constant friction wears down the sharp edges and corners, resulting in smoother, rounded shapes over time. The movement of water, wind, or ice can also contribute to the rounding of sand grains.

Related questions

What shapes are the pollen grains?

Pollen grains are typically spherical or oval in shape, but can also vary in shape depending on the plant species. Some pollen grains may be elongated, lobed, or asymmetrical.


Adaptive value for the shape of pollen grains?

The shape of pollen grains can impact their ability to disperse through the air or be carried by pollinators to reach female reproductive organs for fertilization. Different shapes may be advantageous depending on the method of pollination employed by the plant species, such as wind or insect pollination. For example, spherical grains are often adapted for wind dispersal, while larger and more complex shapes may increase adherence to pollinators for insect-mediated pollination.


How are pollen grains adapted to help plant pollinations?

Pollen grains are adapted for plant pollination by being small, light, and easily dispersed by wind, water, or animals. They typically have a hard protective coating to withstand various environments and ensure successful delivery to the female reproductive organs of plants. Additionally, pollen grains often have unique shapes or structures that help them adhere to pollinators or specific female plant structures for successful fertilization.


Why diatoms are different shapes and sizes?

There are many different species of diatoms, and the different species are different in shape and size.


Why do flowers have different shapes?

Although a flower can come in all shapes, sizes, colors, and fragrances, most flowers are made up of the same parts that genetically mark them as a flower species. A flower will have petals, a pistil, a stamen, and a sepal.


What does a pollen grain look like?

The pollen for each kind of tree or flower is distinctive to that species, so there is no definite description for what pollen in general looks like - the grains aren't even all round; the size also varies: for instance, a grain of pollen from an elm tree (which is round) is about 20 micrometers in diameter, whereas a pollen grain from a Scots pine tree is kinda kidney shaped, & measures about 40 x 60 micrometers


What is the combination of sizes and shapes of grains?

texture


What gives rock it's texture?

The sizes,shapes,and positions of the grains that make up a rock.


How are rocks and grains different?

Rocks are composed of one or more minerals, while grains are small, individual particles of a mineral. Rocks can be made up of different types of minerals and have a variety of sizes and shapes, while grains are typically uniform in composition and size. Rocks are larger and can be made up of multiple grains, whereas grains are individual, tiny fragments.


The word that describes the shapes and sizes of the grains in rock?

Texture.


Pictures to tell if a fish is a male or female?

Different species require different methods to determine if the fish is male or female. Usually, the female is larger and rounder than the male. Some species have different shapes of fins. Some species have different colors. Without knowing what species you are trying to identify, it is difficult to give a definite answer.


Do sentient species come in all shapes sizes and colors?

Yes. Sentient species come in all shapes, sizes and colors.