Because it is present in the earliest cell that lived in earth
<span>The main difference between DNA and RNA is that DNA contains double-stranded molecules and RNA contains single-stranded molecules. DNA stands for deoxyribonucleic acid and RNA stands for ribonucleic acid. Both DNA and RNA carry genetic information, but there are a few major differences between them. DNA consists of the sugar deoxyribose, and RNA contains the sugar ribose. Ribose contains one more -OH group than deoxyribose. Another difference is that DNA is stable under alkaline conditions while RNA is not stable.</span>
Answer:
Energy
Explanation:
In the perspective of common people , almost all changes that we make need some sort of energy in order for it to happen. Even the simple ones.
(For example, When you want to turn on the lamp, you need to spend energy to push your finger down and press the switch. When you wants to change your bed covers, you need to spend energy to walk down to the cabinet , take out the bed covers, and spend another energy during the removal and set up of the bed cover.)
Energy can be expressed using or Newton* meter as units, mean that you do a certain amount of work(Newton) over a distance (meter) and The ability to conserve or energy like food will be expressed as Joule(J).
The plasma membrane is the membrane that surrounds cells and controls what comes in and what goes out of that cell. It is made up of layers of phospholipids whos tails are nonpolar (no charge) and the heads of the Phospholipids are Polar (have a charge).
Answer:
a mineral is scraped or rubbed hardly on sandpaper or unglazed porcelain
( please mark me as brainliest that would be most appreiciated )
