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Yuliya22 [10]
3 years ago
15

Which of the following statements about change in ecosystems is true?

Biology
2 answers:
neonofarm [45]3 years ago
6 0
Ecosystems experience change through human activity and natural events. This is because human activity can impact changes in nature, like climate for example. As a result, ecosystems change in response to the change in nature or natural events, which was caused by human activities. They are interrelated so to speak.  
Ber [7]3 years ago
4 0
<h2>Answer: D </h2>

Just did the assignment.

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Glycolysis is the first step whereas Krebs cycle is the second step of cellular respiration.

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In an experiment, the membrane potential of a neuron is hyperpolarized to –120 mV. When an inhibitory neurotransmitter is applie
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Answer:

The inhibitory transmitter activates ligand-gated potassium channels

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When a cell is in hyperpolarized state,the potassium gated channels are taken longer time to close up, Therefore, more K+ leaks out of the axoplasm  to the exterior.Therefore the cell appears to continue in the resting state, with more negative value of the cell potential of (-120 mV) and this called hyperpolarization.

However, with the addition of  inhibitory transmitter,the ligand-gated potassium channels are activated,Theses channels closes up.Then sodium  gated channels, which  were initially in refractive state reopens, sodium ions diffuses inwards for depolarization, and the neuron returns to depolarized state.

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6 0
2 years ago
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7 0
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The most famous of the asphalt deposits in shower is found in Los Angeles California they are known as the
wlad13 [49]

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