Only a little of the equator gets to experience day and night. When Uranus revolves around the Sun one part gets light and day while the other gets light and darkness. So it changes because one time you can be looking and its day. Then you will look again and it will be night since Uranus moved around the Sun.
Out of the following given choices;
<span>A. </span>The sodium channels would open and close randomly, regardless of the presence of light.
<span>B. </span>The sodium channels would remain closed in the light and the dark, even when cGMP decreases after light stimulation.
<span>C. </span>The sodium channels would remain open in the dark and close rapidly to the light.
<span>D. </span>The sodium channels would remain open longer, even when cGMP decreases after light stimulation.
The answer is D. cGMP maintain the sodium channels open when there is no light stimulation. This ensures that there is high intracellular Ca2+ concentration due to the Na+/Ca2+-K+ exchanger. When cGMP is hydrolyzed in light stimulation cascade, the channels close causing hyperpolarization of the rod cells.
Precambrian which lasted 291 million years!
Hope this helps!
-Payshence
The correct answer is option B Physiological
The herbivores have field of view of 180 degree from each eye which means they can have the vision of things with in the 180 degree angle of cone of vision which is purely a physio optical concept and thus this is a kind of physiological behavior . These herbivores can see an object with only one eye.
Answer:
1. seawalls
2. volcanic
3. mass wasting
4. ocean basin
5. erosion
Explanation:
6. Reefs form from volcanic activity on an island in the ocean. This initially forms a fringing reef, but sea level rise can cause the reef to lie farther out from the island, forming a barrier reef. If the island ever subsides below sea level, the reef is called an atoll.