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AveGali [126]
3 years ago
8

What is a stem cell?

Biology
2 answers:
dangina [55]3 years ago
3 0
I undifferentiated cell of a multicellular organism which is capable of giving rise to indefinitely more cells of the same type, and from which certain other kinds of cell arise by differentiation.
Cloud [144]3 years ago
3 0

An undifferentiated cell of a multicellular organism which is capable of giving rise to indefinitely more cells of the same type, and form which certain other kinds of cell arise by differentiation

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a model of a car has a scale 1:20. the volume of the actual car is 12^3 find the volume of the model​
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Answer:

86.4

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Find the actual car volume, then divide it by 20

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Question 21(Multiple Choice Worth 4 pollies)
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I don't unerstand the question

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I think it's B

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5. What causes a thunderstorm to end?
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Updrafts continue to fuel the storm with warm, moist air. But, once a storm runs out of updrafts, it starts to weaken. As a storm begins to slow down, the rain and wind become less intense. And by the end, all that's left is a blue sky and an anvil-shaped cloud top.

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either a or b

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definitely not c or d.

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Explica el impacto del desarrollo de las técnicas moleculares en los sistemas de clasificación de los organismos.
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Answer:

Las técnicas moleculares, especialmente aquellas basadas en la manipulación del material genético, permitieron automatizar el proceso de identificación y clasificación de especies

Explanation:

Las técnicas moleculares usadas para la clasificación de organismos son aquellas principalmente relacionadas a la manipulación de su material genético. En especial, las técnicas de extracción de ADN, amplificación mediante la reacción en cadena de la polimerasa (PCR) y posterior secuenciación han posibilitado automatizar el proceso de clasificación de organismos. Los marcadores moleculares de ADN basados en secuencias génicas evolutivamente conservadas tales como, por ejemplo, la secuencia del gen Citocromo Oxidasa I (COI) en animales, son ampliamente usados para automatizar este proceso de identificación y clasificación de nuevas especies.

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