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n200080 [17]
2 years ago
8

For what purpose is the mineral corundum commonly used?

Biology
1 answer:
prohojiy [21]2 years ago
5 0

Answer:

D I guess because grinding optical glass and for polishing metals and has also been made into sandpapers and grinding wheels.

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Which best explains what exo in exoplanet means?
timofeeve [1]
Exo means outside


So planets outside our solar system
6 0
3 years ago
If a small droplet of ordinary fat molecules is suspended in water, the fat molecules form a "ball of spaghetti" with no particu
kolbaska11 [484]

Answer:

Option 1, a charged end and a noncharged end

Explanation:

Complete question

If a small droplet of ordinary fat is suspended in water, the fat molecules form a "ball of spaghetti" with no particular orientation. But if a droplet of phospholipid molecules is put in water, all the molecules point outward, toward the water. Phospholipids are forced into this orientation because phospholipids have _____

  1.  a charged end and a noncharged end
  2.  three fatty acid molecules, all pointing in different directions
  3.  two fatty acid molecules pointing in different directions
  4.  both a saturated fatty acid and an unsaturated fatty acid
  5.  two charged ends

Solution

The structure of phospholipids consists of the following groups and molecules –  

a) A glycerol molecule  

b) Fatty acids (2 in numbers) – It is hydrophobic as it is uncharged and non polar in nature

c) Phosphate group (with alcohol) – It is hydrophilic as it is negatively charged and polar in nature.  

When the phospholipids are placed in  water, the molecule rearranges itself in a way that the hydrophobic head face inside and the hydrophilic head face outside thereby forming micelles.

Hence, option 1 is correct

3 0
3 years ago
What are some causes of cancer
andrew-mc [135]

Answer:

There are a bunch of things.

Explanation:

Smoking and Tobacco.

Diet and Physical Activity.

Sun and Other Types of Radiation.

Viruses and Other Infections.

Hope this helps!

6 0
2 years ago
Read 2 more answers
How does wearing slippers reduce the growth of fungus on the feet?
umka2103 [35]
It protects  ur toes and foot from dangerous germs like what u do in the bathroom.Also it prevents us from fungus by keeping our foot on the clean soul of ur shoe

5 0
3 years ago
If the ecosystem is balanced, which populations should be the largest? Which should be the smallest?
Evgesh-ka [11]

There would be more prey than predators, as for a predator to have a balanced diet it should have a plentiful supply of food, meaning it needs more prey.  You're welcome!

3 0
3 years ago
Read 2 more answers
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