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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.
Secretion of Hormones The secretion of most hormones (except steroid) is by the process of exocytosis. Figure summarises the formation, transport, release and reconstitution o
How can brain research improve the treatment of pain? Despite recent advances in understanding how brain processes and responds to pain, experts say pain continues to be grossl
Size of Ecosystem As you know an ecosystem may be as small and as simple as a cow dung pad or as complex and large as an ocean or the biosphere itself, comprising a wide variet
A laboratory mouse homozygous for an RFLP marker is mated to a wild mouse that is heterozygous for that marker. One of the heterozygous individuals resulting from this cross is mat
Determination of Neural Ectoderm by Induction Earlier you know that the dorsal mesoderm induces the ectoderm to differentiate into neural tissue. Spemann and his co-workers co
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Explain Lamda and Kappa-carrageenan Lamda-carrageenan at a concentration of 0.05% produces thickening and stabilization. Sodium salts of Lamda and Kappa-carrageenan at a co
Q. How are the three major arthropod classes characterized according to the presence of wings? Arachnids and Crustaceans do not have wings. Most insects have wings.
Describe Valvular PS Murmur and their characterstics? Characteristic: Harsh crescendo-decrescendo murmur along the left sternal border and loudest at pulmonary area, conducted
Controlling Introduction of Alien Species As you know the alien species can cause the existing population to decrease or even become extinct. The individuals of alien species
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