Answer:
<u>Mid-ocean ridges</u> are the mountain ranges within the ocean environment. They are formed when oceanic plates collide during plate techtonics and magma rises above the oceanic lithosphere. Typically, it results into uplifting of the thin oceanic crust and making mountains. The magma solidify after interaction with the water and results into formation of new lithosphere.
<u>Accretion</u> is the phenomenon during which new material is added and landmass (lithosophere) is created during plate tectonics. Therefore, accretion takes place during formation of mid-oceanic ridges. Principally, when a plate subducts below the other plate, some material scrap off from the subducting plate and then deposit above the plate hence making accretionary wedge.
The two main sources that lead to increased genetic variation are gamete mutations and recombination.
A gamete is the cell which combines with another cell during fertilization. So, its mutation can lead to variation in genes. Recombination as well, as the position of genes is changed.
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Under the following conditions does mushroom cellobiase generate glucose most efficiently- Temperature- 50 to 55 degree Celsius and pH 4.8.
Cellobiase is an enzyme found in fungi that is used for the last process of breaking down of the cellulose into glucose to produce energy.
As every enzyme works optimally in a certain temperature and pH condition the ideal temperature for the working of cellobiase is 50 to 55 degree celsius and ideal pH is 4.8.
These enzyme is essential for the process of breakdown of cellulose hence organisms like fungi and bacteria possessing this enzyme is only able to digest the cellulose.
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