The elements in each group have the same number of electrons in the outer orbital. Those outer electrons are also called valence electrons. They are the electrons involved in chemical bonds with other elements. Every element in the first column (group one) has one electron in its outer shell.
A. it has uracil
We know the sequence is RNA because it contains uracil.
Answer:
By understanding how cells function in healthy and diseased states, cell biologists from the medical, animal and plant sciences will be able to develop new vaccines, medicines and more effective plants with improved properties and, through increased knowledge, a better understanding of the way of life of all living things.
Explanation:
Some living thing's bodies are weaker than others. For the species to live, the strong ones of the species will not get sick, reproduce and create strong offspring. The weak will die out.