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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.
Patters of Cleavage In most of the animal groups with spherical or almost spherical egg and little or moderate amount of yolk (micro-or mesolecithal eggs), the first and seco
Q. How do biodiversity, the total number of living beings and the biomass respectively vary during the ecological succession? The Biodiversity, the biomass of an ecosystem and
Define role of Vitamin D in controlling gene expression? Vitamin D is a secosteroid that is metabolically activated and degraded through the actions of three cytochrome P450 hy
Q. Explain about Catheters and Guide Wires? The commonly used guide wires vary in diameter from 0.012 to 0.052; with 0.035 or 0.038 being the most commonly used sizes. The stan
What is the cytoskeleton, and what are three of its main components? The cytoskeleton is a network of long protein strands located in the cytosol. Three main components are
A complete motor neuron is deleted from a frog and placed in a large volume of normal physiological saline. The neuron is healthy; it has a stable resting voltage of -70 mill
reproduction
Under which forms is the Trypanosoma cruzi found in its hosts? In the definitive hosts as well as in triatomine bugs (middle hosts) the protozoan that causes Chagas' disease ch
Determine the change in the amount of intracellular chloride Complete motor neuron is removed from a frog and placed in a large volume of normal physiological saline. The neur
Q. How does digestion in beings of the phylum Annelida work and which type of digestive system do they have? Digestion in beings of the phylum Annelida is extracellular. These
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