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Answer:
0.3823 mol
Explanation:
Mass m (Zn)=25g
Molar mass M(Zn) =65.38gmol
n(Zn) = m/M
=25g /65.38gmol
= 0.3823 mol
Answer:
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Explanation:
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Answer:
The three pressures that lead to biodiversity according to E.O. Wilson’s theory of island biogeography are immigration, island area and extinction.
Explanation:
Wilson´s theory predicts a dynamic equilibrium with a constant number of species through time from a balance between immigration and extinction. Wilson’s theory of island biogeography says that when the number of species increases, the immigration will drop and Extinction will increases with the number on species of the islands.At a given time, species richness on island is saturated for a new species to colonize as an immigrant, an existing resident species have to become locally extinct due to competition with other species for resources.
Wilson predicts that species richness increases with island area but decreases with isolation
It is useful for the walls of capillaries to consist of a single layer of thin, flattened cells in order to easily diffuse oxygen and nutrients easily from the blood and into the capillaries. Not only that, but this also makes it more efficient for carbon dioxide and other waste molecules to diffuse from the capillaries and into the blood. If capillaries were thicker than a cell, then it would be more difficult for materials to diffuse through the thick layer of cells.