Answer:
C. Cholesterol
Explanation:
Cholesterol maintains the fluidity of the cell membrane and thereby, regulates its function.
Bile acids are derived from cholesterol which serves as their precursor. For example, Taurocholic acid is a polar derivative of cholesterol. Bile acids serve in the absorption of fatty acids, glycerol, and fat-soluble vitamins as these compounds are non-polar in nature.
Vitamin D is produced when the derivative of cholesterol, 7-dehydrocholesterol undergoes photolysis in skin cells in presence of sunlight.
Answer:
The sun is classified as a star.
Explanation:
The sun is a star at the center of the solar system.
The sun is important in the following ways:
- The sun's light has to be present for photosynthesis to occur thereby, it enables food production by plants.
- The sun lights up the earth through its light rays.
- It warms up the sea.
- It provides heat for heating up the earth leading to production of water vapor that rises to form clouds.
- The sun also provides vitamin D that is essential to living organisms health.
Hey You!
I believe this is true, as chemotherapy is most effective at killing cells that are rapidly dividing.
Answer:
It really just depends how you plan to use cloning in a Science Fiction text. If you're talking about cloning an animal like Dolly, then you could create a story about a farm with purely identical animals and such. If you're talking about absurd cloning methods such as a copying machine, then you could do whatever you want. It really just varies as to how in depth and realistic you want cloning to be in your story.
This process is called Photosyethesis. The reason is so that other organisms can eat the food and transfer energy to other organisms.
