Answer:
Tornadoes
Explanation:
Tornadoes: violently rotating columns of air. . Tornadoes violently rotating columns of air. A tornado is defined as a violently rotating column of air in contact with the ground and pendent from a cumulonimbus cloud:)
The statement that best describes the Chesapeake bay is that it is one of the most productive estuary in the world
Explanation:
This estuary covers more than 64,000 square miles and there are more than 150 rivers and streams which are located across the estuary. This estuary covers more than six states some of the major states are New York, Virginia and Mary land.
More than 250 fish species use this bay for their entire life cycle and this river holds the tremendous ecological cultures and there are many recreational value for this region and hence Chesapeake bay is considered as one of the most productive bay in the US and in the world.
Answer:
Its nucleotides can base-pair with both ribose and deoxyribose nucleotides.
Explanation:
Answer:
1. They play a key role in seed dispersal, allowing their forest environment to continue to grow and thrive.
2. Resist parasites that cause malaria, some cancers, and a number of other pathogenic bacteria
3. Loss include climate change, deforestation, habitat degradation, and hunting
4. Climate change
5. One of the quickest ways we can lower our collective greenhouse gas emissions is to eat less meat.
Answer:
a. It has a negative value.
b. It is measured in millivolts.
c. It is measured in millivolts.
Explanation:
Resting membrane potential is typically ~ -70 millivolts so options a, b and c are correct, rest are false statements.
The resting membrane potential is -70 millivolts because more K+ is inside the neuron while more Na+ is outside the neuron and it reflects more negative voltage in the cytosol as compared to the interstitial fluid.
As soon as stimulus arrives, it causes more Na+ to move inside the neuron making the membrane potential as +20 millivolts and the neuron is said to be in 'depolarized state'. Soon after that K+ starts to move outside of the neuron and since K+ has positive charge and it is moving out of the cell so the membrane becomes more and more negative inside and at this time neuron is said to be in 'hyperpolarised state'.