Answer:
yes.
Explanation:
I believe that some form of life exists outside of our planet. the galaxy is gigantic and ever-expanding. there's a very low chance that with every planet out there, there's no other life form. Now, humans have depicted aliens in many ways. green with black eyes, brown like E.T.... some speak English and some speak a language we cannot understand. I'm not sure if the life forms that are out there would be as developed as we imagine, but anything is possible with an ever-expanding universe. I think the closest we'll ever get to finding an "alien" is a couple of cells that are "alive"
Answer:
Niacin (Ans. A)
Explanation:
Nicotinamide adenine dinucleotide (NAD) is known as important cofactor which help in carrying electrons from one reaction to another reaction in the cellular respiration process.
Cells are able to restore performed compounds which are containing a pyrimidine base precursor vitamin for the synthesis of NAD: nicotinamide, nicotinic acid, and nicotinamide riboside.
These elements are taken up from the diet whos containing vitamin B3. Nicotinamide, and nicotinamide riboside both can be absorbed from the gut. Niacin or vitamin B3 also produced within cells with the help of cellular digestion of NAD+.
The material in the lab represents each of these parts of the Earth system is water as through this experiment we will find about the effect of water on earth.
<h3>What is Quartz (silicon dioxide)?</h3>
The considerable portions of silicon dioxide determined withinside the earth's crust are enough to fulfill all commercial needs. Among the minerals and earths that incorporate silicon dioxide in an uncombined shape are quartz, flint, diatomite, stishovite, agate, amethyst, chalcedony, cristobalite, and tridymite.
- The water's ability to dissolve different kinds of rock is weathering.
- NaCl are minerals are dissolved by plainwater.
- Limestone (calcium carbonate) minerals are dissolved by rainwater.
- Minerals do not undergo solution is Halite (sodium chloride):
- No only sedimentary rocks are chemically weathered by water.
Read more about the plain water:
brainly.com/question/20596858
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Answer:
There are three main types of blood vessels:
1)Artery ---
i) It is a blood vessel having a thick wall.
ii) It carries blood from the heart to different parts of the body.
iii) On regulatory demand of the body it can dilate or constrict.
iv) It doesn't contain any valve.
v) All arteries carry oxygenated blood except the pulmonary artery.
2)Vein ---
i) It is a blood vessel having a thin wall.
ii) It brings blood from different parts to the heart.
iii) It can't dilate or constrict under normal conditions.
iv) It contains valves that allow the blood to flow in one direction towards the heart.
v) All veins carry deoxygenated blood except the pulmonary vein.
3)Capillary ---
i) It is a very narrow blood vessel that has very thin walls.
ii) It forms a network throughout the body in all living cells connecting arteries to veins.
iii) It can dilate or constrict according to the requirement of tissue.
iv) It doesn't have any valve.
v) It contains mixed blood as it connects arteries and veins
