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 />
Since two females are unable to reproduce. Therefore, if only two females are still alive, the species will become extinct.
the answer is D
20 characters must be written...... Y?
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Answer:
I have no clue what your asking
Explanation:
Sorry but I need more context
The blood travel to your liver before transporting nutrients to other parts of your body in order to filter out substances that are not needed for the body. The liver <span>regulates the composition of blood, including the amounts of sugar (glucose), protein, and fat that enter the bloodstream. It removes bilirubin, ammonia, and other toxins from the blood. </span>