How does weight effect the distance a paper airplane will fly?
I believe a simple change in DNA results in Mutation. A mutation is a random spontaneous changes that occur in the genetic make up of an organism ( in the DNA sequences). The mutation are either due to mistakes when DNA are being copied or as a result of environmental factors such as UV light and cigarette smokes among other mutagens. Mutations may be either gene mutation (permanent alteration in the DNA sequence that makes up a gene) or chromosomal mutation.
"Compound" is the one among the following choices given in the question that is a <span>substance formed by the chemical joining of two or more elements in definite amounts. The correct option among all the options that are given in the question is the first option or option "A". I hope the answer has helped you.</span>
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The first line of defence (or outside defence system) includes physical and chemical barriers that are always ready and prepared to defend the body from infection. These include your skin, tears, mucus, cilia, stomach acid, urine flow, 'friendly' bacteria and white blood cells called neutrophils.
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