The author explains MAINLY the importance of wind, nuclear and solar energy. suggesting that these energy sources can be used instead of burning fossil fuels.
<h3>What are renewable energies?</h3>
Renewable energies are energies resulting from renewable resources, that is, they are inexhaustible, such as
and new emerging energies, such as
- Solar
- Wind
- and Biomass energy.
With this information, we can conclude that the author explains MAINLY the importance of wind, nuclear and solar energy. suggesting that these energy sources can be used instead of burning fossil fuels.
Learn more about energies in brainly.com/question/1932868
Answer:
DNA and RNA both pair guanine to cytosine. In RNA, thymine which is pair with adenine in DNA, is replaced with uracil
Explanation:
Answer:
The question is non-existent
Answer:
The sodium channel have refractory period.
Explanation:
Action potential are generated at axon hillock of neuron and travel across the neuron in response to stimuli. For the the generation of action potential the steps are stimulus, depolarization, repolarization, hyperpolarization and resting state.
So the first step for action potential after stimulus is depolarization. Depolarization requires the opening of sodium channels to make the inside of neuronal membrane positive. These sodium channels have refractory period. They cannot open immediately after activation. So the sodium channels of one direction in neuron (upstream) become refractory and it is convenent to open the sodium channels of other direction (downstream) of neuron. That why action potential is transmitted in one direction.
It is like the gunpowder placed at a line the fire cannot go back in burnt gun powder direction.
GG, because both parents have the exact same gene which would cause the offspring to have the same gene.