The rods are photoreceptor cells that respond to the longest wavelengths of light, ranging from approximately 500-700 nm. Rods are responsible for vision at low light levels (scotopic vision).
The cones, on the otehr hand are the other <span>photoreceptors in the human retina that </span>are active at higher light levels (photopic vision).
Hello,
I'd say that your answer would "water". Water is the source of alot of thing's. Water help's and nourishes dirt, keeping it healthy, water keeps us from dehydrating. Water, help plant's and many other things.
Hope this helps.
~Hottwizzlers
The Sidereal Day is 4 minutes shorter than the Mean Solar Day, because the rotation of the Earth on its axis, and the orbiting of the Earth around the Sun, are both counterclockwise, as viewed from above (or north of) the Ecliptic Plane. See planetary retrograde motion for an example of the opposite situation.
The reason that the Solar Day varies around the Mean Solar Day is that the Earth moves at different speeds through its orbit around the Sun. This is in keeping with Kepler's Second Law of Planetary Motion.
Please note that the Mean Solar Day changes over a long period of time, due to the slowing of the rotation of the Earth due to tidal forces exerted on the Earth primarily by the Moon. For example, the Mean Solar Day was about 23 hours about 250 million years ago.
Answer:
It controls opening and closing movements of the stomata, but that isn't one of the answer choices.
Explanation:
Answer:
B
Explanation:
It must <em>always </em>be buried quickly that's the whole point.
