1) Weather services gives up to 8 hours of watch time because its just a prediction and might not be accurate
2) Necessary precautions is when there is a dangerous weather alert coming towards you and you need to go for safety
3) When theres a warning, it means to look out for something and be safe at the same time
Answer/Explanation:
The DNA in all living organisms is made up of 4 bases, adenine, thymine, guanine, cytosine. The RNA replaces thymine with uracil, making 5 types of nucleotide. The number of nucleotide pairs in a genome can range from half a million up to 100,000 million - meaning there are an exponential number of combinations of these 4 bases.
Imagine an organism exists that has only 2 nucleotides (<u><em>this is over 200,000x smaller than even the smallest bacterial genome</em></u>). If we allow any nucleotide at each of the 2 positions, then we have 4x4 (4²) or 16 possible combinations of sequences. For a nucleotide length of 4, the total number of possible combinations are 4⁴ or 256.
Since we are dealing with many millions of nucleotides, there are essentially infinite combinations of nucleotides, giving rise to the variation that produces over 20 million organisms on the planet.
<span>Skin, mucous membranes, sloughing of dead skin, tears (lysosymes/flow of fluid), sweat, normal microbial flora of skin Hope this is helpful and the BRAINLIEST answer!</span>
In the immune response the body reacts to each kind of
pathogen with a defense targeted specifically for that pathogen.
