The correct option is this: HE COULD DETERMINE WHETHER THE HYPOTHESIS IS BASED ON REPEATED EXPERIMENTS.
An hypothesis is a proposed explanation based on prior knowledge which serves as a starting point for scientific experimentation. After the experiment, if the hypothesis is confirm to be true and other scientists test it also and find it to be true, then the hypothesis can be regarded as theory, because it has been tested many time and find to be true.<span />
Answer: It is 100% thymine, i know because i took the test literally today, trust me.
Also in RNA thymine is replaced by Uracil
Swollen lymph nodes is the sign of infection because swollen lymph nodes usually occur as a result of exposure to bacteria or viruses. When swollen lymph nodes are caused by an infection, this is known as lymphadenitis (lim-fad-uh-NIE-tis). Rarely, swollen lymph nodes are caused by cancer.
Your lymph nodes, also called lymph glands, play a vital role in your body's ability to fight off infections. They function as filters, trapping viruses, bacteria and other causes of illnesses before they can infect other parts of your body. Common areas where you might notice swollen lymph nodes include your neck, under your chin, in your armpits and in your groin.
The answer to this Question is d. the cell cycle