There are 4 nitrogenous bases in DNA. Adenine pairs with thymine, and Guanine pairs with cytosine. A Dna Nucleotide consists of a 5 carbon sugar, a phosphate group and a nitrogenous base. These bases are paired up by weak hydrogen bonds, so when they have have to replicate, the enzyme helicase can easily unzip the Dna. <span />
Answer:
Biodiversity
Explanation:
Biodiversity is the variety of life in a habitat or ecosystem
Answer: Its B.) Force.
Explanation: Nice profile pic :)
I believe it should be 94%.Normal arterial oxygen is approximately 75 to 100 millimeters of mercury. Values under 60 mmHg usually indicate the need for supplemental oxygen. Low blood oxygen is known as hypoxemia. Normal pulse oximeter readings usually range from 95 to 100 percent. Values under 90 percent are considered to be low.
