Answer:
For aquatic ecosystems, these factors include light levels, water flow rate, temperature, dissolved oxygen, acidity (pH), salinity and depth. Light level is an important factor in aquatic ecosystems.
The sun is the ultimate original source of energy for all living things on Earth.
i think it is A I'm not so sure
Answer:
Just as helicase is responsible for unwinding the DNA strand, DNA polymerase is responsible for replicating the strand once it unwinds and separates. DNA is made up of a sugar-phosphate ladder and a nucleotide base.
Explanation:
If a person drinks too much water in a certain short period of time, it can be very dangerous. It can cause the level of salt, also known as sodium, to drop really low, which is serious and can hurt you <span />
