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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.
Write the positive ion isoelectronic with neon The positive ion isoelectronic with neon must have 10 electrons and 11 protons, and thus must have an atomic number = 11. This i
Define Food Components Other Than Essential Nutrients? In the previous units so far, we have read about the six major nutrients, which are essential for us. Though these vary i
Explain glycolysis? Name the two monosaccharides which readily enter the glycolytic pathway. Illustrate a diagrammatic sketch of the microscopic view of a mammalian sperm a
Characteristics of River Systems The basic function of the rivers is to convey surplus rain water from land to sea. Annually the rivers carry fresh water, equivalent to 25 cm
Explain how human activities can cause an imbalance in biogeochemical cycling and lead to problems such as cultural eutrophication and fish kills
Which of the following is not true regarding the complement system?Answer This system involves a group of at least 20 proteins found in the blood plasma. During an infection, one p
When the standard free energy of a reaction is -5.7 kj/mol then at equilibrium a- there will be 10 times more products than reactants b-there will be 10000 times more product
Who was Charles Darwin? The Charles Darwin was an English naturalist born in 1809 and considered the father of the theory of evolution. By the end of the year 1831, before turn
Ed e m a It refers to excessive accumulation of fluid in tissue spaces caused by disturbance in the fluid interchange between capillaries, tissue spaces and lymphatic vessel
Explain about the Hypokalemia? Normal serum K ranges from 3.5-5 mM/L. Hypokalemia or low plasma K levels can occur with a net shift of K from the plasma to the cells. This shi
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