Answer:
4
Explanation:
According to newton's second law f=ma. so a =f/m
then a=20/5 gives 4
The answer is the third option. she could still get hypertension if she becomes a heavy smoker because of the chemicals in tobacco can cause your artery walls to narrow increasing blood pressure
Answer:
they could create more of the item/ produce. they could make them bigger and more tasteful also.
Answer:
Explanation:
DNA mutations could be silent and have no effect, others affect protein synthesis. Mutation is a change in a DNA sequence brought about either by a mistake made when the DNA is copied or through chemical damage.
A point mutation is a single-letter swap – an exchange of two bases, adenine to cytosine, for example, at a single location in the DNA molecule. Since the sequence of letters in a gene determines the sequence of amino acids in the protein it encodes, a point mutation can change the amino acid sequence of the resulting protein. Sometimes a change in the protein's amino acid sequence can have dramatic results. For example, sickle cell disease occurs when a single-point mutation in the gene that encodes the hemoglobin molecule results in deformed red blood cells.
In an atom, the nucleus is composed of protons and neutrons, while the electrons orbit very quickly around the nucleus.