Answer:
The correct answer will be option-A
Explanation:
The sympathetic nervous system is a type of the autonomic nervous system which mediates the homeostasis and stress response.
During stress condition, it initiates the hormonal response called fight or flight response by secreting acetylcholine from the adrenal medulla which stimulates the secretion of the epinephrine and norepinephrine.
This hormone produces an observable response like increase in the heart rate, widening of the bronchial passages, constriction of the blood vessels, pupillary dilation, perspiration and <em>decreases motility of the large intestine.
</em>
Thus, option-A is the correct answer.
Explanation:
Of the energy that reaches the Earth from the Sun, a small amount is absorbed by the atmosphere, a larger amount (about 30%) is reflected back to space by clouds and the Earth's surface, and most of it is absorbed at the planet surface and then released as heat.
Energy is transferred between the Earth's surface and the atmosphere in a variety of ways, including radiation, conduction, and convection.
Molecules of all substances, even solids, have random motion and therefore an associated kinetic energy and temperature. ... Completely empty space would have no temperature since there are no molecules there.
(this is not much but hope it helps u)
This is a difficult answer because the way you worded it but I believe I understand. The answer is chloroplast. They absorb light to help feed a plant cell.
Events of the light-dependent reaction of photosynthesis starts with the absorption of sunlight and ends with ATP production.
<h3>Events of light-dependent reaction</h3>
- In the first step energy is absorbed from the sun and then water is broken down.
- Hydrogen ions of the water molecules are transported across the thylakoid membrane.
- NADPH is produced from NADP+.
- Hydrogen ions diffuse through the protein channel.
- ADP turns into ATP.
Learn more about light-dependent reaction here: brainly.com/question/2114531
In this problem we will use the formula: f = c/λ
Wherein: f = frequency
c = speed of wave
λ = wavelength of wave
500 km/h / 200 km = 2.5 Hz
<span>In this problem, speed and the distance between
crests are given. Therefore, all you have to do is to divide the speed by the wavelength
to determine the frequency using the formula provided.</span>