3 years ago

What are isotopes and why are they important?

1 answer:

6 0

Isotopes of an element all have the same chemical behavior, but the unstable isotopes undergo spontaneous decay during which they emit radiation and achieve a stable state. This property of radioisotopes is useful in food preservation, archaeological dating of artifacts and medical diagnosis and treatment.

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For guinea pigs, short fur (F) is dominant over long fur (f)cross a heterozygous parent with a homozygous recessive parent. What

maks197457 [2]

50% of them will have long fur

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3 years ago

Which group consists entirely of organic molecules?

Murljashka [212]

The answer is choice 1.

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2 years ago

Type I hypersensitivities require which of the following initial priming events to occur?

kherson [118]

Answer:

Sensitization.

Explanation:

Hypersensitive reaction may be defined as the exaggerated or hyper response of the immune system. Hypersensitive reactions can occur due to auto immunity and allergies.

Type I hypersensitive reaction is mainly mediated by IgE antibodies. The sensitization towards particular stimuli like pollen grains may exaggerate the Type I hypersensitive reaction.

Thus, the correct answer is option (1).

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I need help on this question

asambeis [7]

The 3rd answer is correct.

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You notice that water is running off the feathers of a bird in the rain. the reason is probably that the bird has coated the fea

kow [346]

Answer:

Lipids

Explanation:

The reason is that lipids are hydrophobic.

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3 years ago