Answer:
<h2>The answer is option D- Selective breeding.</h2>
The investigators could distinguish human hair from animal hair by the patter of pigmentation and by the medullary index.
The pigmentation in human hairs is denser toward the cuticle, whereas in animal hair is denser toward the medulla. Human hairs are usually one colour throughout the whole length, while animal hairs may change colour suddenly.
The medulla in humans is thinner than in animals: the medullary index for human hairs is 0.33 or less; the medullary index for animal hairs is 0.5 or more.
<span>The best answer to the question: "The destruction of salt marshes will directly harm each organism except" ... is Algae. Algae blooms are the biggest outcome of salt marsh destructions, which starve the water of oxygen making it uninhabitable, as the algae grows, it covers the surface of the water and harms almost every organism part of that ecosystem. So I would say algae.</span><span />
Answer: B. Melting temperatures of primer should be between 55-80 degree Celsius.
Explanation:
Bacause the melting temperature controls the binding of the primers to your template DNA. At melting temperature 50% of the primer molecules are bound to their corresponding target sequence. If the difference in melting temperature between the two primers is too high, it might be difficult to find experimental conditions where both primers can bind to their target.
Answer:
Aerobics is a type of physical activity that combines rhythmic aerobic exercise with stretching and strength training exercises to improve overall fitness.
~OAmalOHopeO
