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What is pollination? What are the main forms of pollination?
The process in which pollen grains (the male gametophytes of phanerogamic plants) reach the female gametophyte is known as pollination.
Characteristics of the flowers of every plant species relate to the type of pollination used by the plant. Colored flowers are specialized in bird and insect attraction; nocturnal flowers normally are white and perfumed, a lot of specialized in pollination by bats; the nectar is also a specialization to attract pollinator animals; flowers that make an exaggerated amount of pollen often use the wind as pollinator; the position of anthers more external or internal next to the nectar is a way to facilitate the pollen dissemination respectively by the wind or by animals.
Biochemical Changes Many workers have tried to follow the biochemical changes that precede flowering and result in meristems which give rise to flowers instead of vegetative s
What are the three main parts of a eukaryotic cell? The eukaryotic cell can be divided into two major portions: the cell membrane that divides the intracellular space from the
NERV E FIBRES - Axon or dendrite of a nerve cell covered with one, two or three sheaths is called nerve fibre. Dendrites are surrounded only by one sheath. An axon may b
Conventions for using binomial nomenclature The names of higher categories are often synthesized from Latin words in the same manner as generic or specific names, and always s
Determine Vitamin A requirements of school children and adolescents? The vitamin A requirement of children and adolescents has been computed from growth curve interpolation dat
name of enzyme that mostly used in industrial biotechnology?
A DNA library is a collection of cloned DNA fragments in a cloning vector which can be fined for a DNA of interest. If the target is to isolate particular gene sequences.
Q. What is Stenotic and regurgitant lesions? The normal cardiac valves offer little resistance to blood flow even when flow velocity is high. When stenosis develops, the valve
Explain Defensive Proteins These proteins protect against diseases. Antibodies are the example of defensive proteins. These combat bacteria and viruses. Also, immunoglobulins,
In what ways can we try to protect a species from extinction? We can attempt to protect species from extinction by making it illegal to kill the threatened animals or uproot o
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