The correct answer is option C, that is, 30 minutes.
It is essential to get a good night sleep for good mental, physical, and emotional health. It is as essential as consuming a healthy diet and doing enough exercise. It has been found that about half of the adults do not shut their eyes, with many admitting that they lie awake at night fretting about their worries.
Thus, to tackle the situation, one should be preparing to go to sleep before 30 minutes of light out. One needs to put the body and brain in the right state where sleep can take place easily.
Answer: Option C) Root hairs have an elongated shape that increases the surface area-to-volume ratio.
Explanation:
The larger surface area-to-volume ratio of root hairs enables them to rapidly absorped water molecules and nutrients along their elongated shape while aiding their upward transport from the root up the shoot (through the xylem vessels).
Energy decreases as it moves up trophic levels because energy is lost as metabolic heat when organisms from one trophic level are consumed by organisms of the next level. More specifically, 90% of metabolic energy is used, so only 10% will be passed down to the next level.
Mechanical gated channels are controlled by mechanical forces applied to the channel, this happens when a distortion of the cell membrane causes a deformation on the membrane channels and thus they change their conformation in order to star or stop the exchange of some molecules.
