Answer:
Explanation: When the cell increases in size, the volume increases faster than the surface area, because volume is cubed where surface area is squared. When there is more volume and less surface area, diffusion takes longer and is less effective. ... this is actually why cells divide.
Explanation:
1 mol 2 mol
84g of N2(g) = 84/28 = 3 mol of N2(g)
From the above reaction 1 mol of N2(g) gives 2 mol 0f NH3(g). So 3 mol of N2(g) should give 6 mol or (6x17) 102 g of NH3(g). But we are getting only 85.0 g of NH3.
Hence %yield of NH3 = 100x85.0/102 = 83.3%
Answer D. is correct.
2. 2HgO (s) --------------------- 2Hg (l) + O2 (g)
2 mol 2 mol 1 mol
4 mol 4 mol 2 mol
As only 1.5 mol of O2 is obtained, so % yield = 1.5x100/2 = 75.0%
Moreover 603 g of Hg = 603/200.59 = 3.00 molof Hg. Considering this also
% yield = 3x100/4 = 75%
The intermediate disturbance hypothesis predicts that communities with intermediate levels of disturbance will have the most diversity. If disturbances become too rare, competitive dominants will eliminate other species, reducing diversity as equilibrium conditions develop.
The intermediate disturbance hypothesis predicts that the highest levels of diversity will occur at moderate disturbance levels. We investigated the species diversity, abundance, and species diversity of bacteria on the human body in relation to washing disturbance. According to IDH theory, diversity is maximized at intermediate levels of disturbance because species that thrive at both early and late successional stages can coexist. The intermediate disturbance hypothesis (IDH) proposes that when ecological disturbance is neither too rare nor too frequent, local species diversity is maximized.
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Answer:
B
Explanation:
Prokaryotic cells lack a nucleus
When members of the same species are geographically isolated over time they will start to differ because of multiple factors:
1. Climate
2. Relief
3. Vegetation
4. Competition
5. Size of the area (specifically referring to smaller islands)
All of this factors (if different) will require a change in the behavior of the species, change in color, change in size, adaptation towards the food source by changing the teeth/beak and thus the jaw structure (for the species that have them), develop a new strategy to hunt (if it's a hunter), or develop a new strategy for evading predators, maybe change the niche in the food chain if there's stronger competition.
