<span>We have two surfaces of nerve cell the outer and inner surface
- resting : when the outer layer ion charges more positively than the inner layer - depolarization : we have the counter part of this state
- repolarization : return to the polarization
- hyperpolarization : the inner negative ion charges will be more negative even more than the resting potential
I hope that this is the answer that you were looking for and it has helped you.
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Answer:
25% heterozygous tall
Explanation:
If we take the F1 generation as parents and let them self-fertilise, we have 4 crosses.
The first one for homozygous tall, then we have 100% AA.
The second and third one for heterozygous tall and we have 25% AA, 50%Aa and 25%aa for each of them.
The last one would be for dwarf, and we'll have 100%aa.
Adding all of them, we'll have
AA = 100 + 25 + 25 = 150%
Aa = 50+50 = 100%
aa = 100 + 25 + 25 = 150%
as we had 4 crosses, so dividing the total percentages by 4, we'll have,
AA = 37.5%
Aa = 25%
aa = 37.5%
:. The percentage of heterozygous tall would be 25%.
Hope it helps:)
The imbalance in energy would cause warming up of the planet and variety in fauna would be limited.
Explanation:
in an energy pyramid large amount of the energy gets dissipated only 10% of the energy is transferred to other level. Trophic level tells the placement of organism in a energy pyramid.
If at any time the pyramid gets blocked:
The passing of biomass and energy gets break to each level.
The organism at the higher level will be scarce of resources as nutrition and energy for growth, multiplication and metabolism.
The organisms at the higher level will get die eventually and vanish from the earth as no reproduction.
The energy dissipated will be in large amount disturbing the ecological chain.
The imbalance in energy would cause warming up of the planet and variety in fauna would be limited.
