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What is the number of germ pores in a pollen grain of dicoits?
In dicotyledonous plants (dicots), pollen grains typically have three germ pores. These pores are openings in the outer layer of the pollen grain, allowing for the emergence of the pollen tube during fertilization. The presence of multiple germ pores is a characteristic feature that distinguishes dicots from monocots, which usually have one.
Why is exine of pollen grain not a continuous layer?
The exine of a pollen grain is not a continuous layer because it has openings called germ pores or colpi, which allow for the entry of pollen tubes during fertilization. These pores are necessary for the reproductive success of the plant as they facilitate the transfer of genetic material from the male gametophyte to the female reproductive structures.
What are the characteristic of eudicots?
Eudicots are flowering plants that typically have pollen grains with three pores, leaves with net-like veins, petals in multiples of four or five, and vascular bundles arranged in a ring in the stem. They often have tap roots and secondary growth. Eudicots represent the largest group of flowering plants.
Are poinsettia a monocot or dicot?
no
What are the small spaces in between mineral grains?
The small spaces in between mineral grains are known as pore spaces. These spaces can be filled with air, water, or other fluids depending on the conditions in which the rock formed. Pore spaces play a crucial role in determining the porosity and permeability of the rock.
Do Dicot have pollen grain?
yes Dicot have pollen grain and in Dicots pollen grain possess 3 germ pores
What is the number of germ pores in a pollen grain of dicoits?
In dicotyledonous plants (dicots), pollen grains typically have three germ pores. These pores are openings in the outer layer of the pollen grain, allowing for the emergence of the pollen tube during fertilization. The presence of multiple germ pores is a characteristic feature that distinguishes dicots from monocots, which usually have one.
What means poration?
Applied to a pollen grain which has 1 or more pores.
Why is exine of pollen grain not a continuous layer?
The exine of a pollen grain is not a continuous layer because it has openings called germ pores or colpi, which allow for the entry of pollen tubes during fertilization. These pores are necessary for the reproductive success of the plant as they facilitate the transfer of genetic material from the male gametophyte to the female reproductive structures.
What are the characteristic of eudicots?
Eudicots are flowering plants that typically have pollen grains with three pores, leaves with net-like veins, petals in multiples of four or five, and vascular bundles arranged in a ring in the stem. They often have tap roots and secondary growth. Eudicots represent the largest group of flowering plants.
Where are the stomata located in dicot?
Stomata in dicot plants are typically located on the underside of the leaves. They are specialized pores that regulate gas exchange, allowing carbon dioxide to enter the plant for photosynthesis and oxygen to exit. Stomata also regulate water balance by controlling transpiration.
Why do monkeys smell?
Like humans, monkeys possess sweat glands, and regulate body temperature by exuding evaporative fluid out pores in their skin.
What are the characteristics of porifera?
Porifera are pore bearing animals . Pores include ostia and osculum . they possess choanocytes or collard cells .
Are poinsettia a monocot or dicot?
no
What is the purpose of polyurethane when finishing lumber?
Polyurethane is a sealant; it keeps water from absorbing into the wood by filling the microscopic pores and grains. If water enters the wood, it can warp and become unstable.
What structural characteristics differ between Eudicots and Monocots?
· Eudicots have two cotyledons; monocots have one cotyledon · Eudicots flower parts in four or parts; monocots flower parts in three. · Eudicots leaf veins are netlike array; monocots leaf veins run parallel · Eudicots pollen grains with three pores; monocots pollen grains with one pore
Do fish have pores?
no fish do not have pores they have scales it is why they don't have pores if you were a fish then scales would be like pores.
