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postnew [5]
3 years ago
11

A person's skin cells and eye cells make different types of proteins to perform their functions. What is the source of the instr

uctions from which all of the proteins are made?
(A) Genes
(B) Mitochondria
(C) Ribosomes
(D) Gametes
Biology
2 answers:
Dafna1 [17]3 years ago
7 0

Yea, its C , ribsomes I am pretty sure

saul85 [17]3 years ago
4 0
The proteins are made in the cell's ribosomes
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Answer:

<em>Aislamiento postreproductivo: Esterilidad del híbrido</em>

Explanation:

El concepto biológico de <u>especie</u>, en su definición, destaca que los ejemplares de una especie no pueden entrecruzarse con ejemplares de otra especie distinta, o bien, en caso de hacerlo, no hay éxito reproductivo.

Existen distintos mecanismos de aislamiento reproductivo, que son barreras que inhiben o interrumpen el flujo génico entre especies distintas. Se trata de caracteres biológicos propios de cada especie que previenen la reproducción con otras especies.

Estos mecanismos de aislamiento reproductivo pueden ser precigóticos o postcigóticos.  

  1. Pre-copulatorios o pre-cigóticos:
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   2. Post-copulatorios o cigóticos:

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La mula es producto de la cruza entre dos especies distintas: una yegua (<em>Equus ferus caballus</em>) y un burro (<em>Equus africanus asinus</em>). Es un ejemplo de la accion de mecanismo poscigótico, en el cual se forma un híbrido viable esteril. Este ejemplar puede nacer crecer y sobrevivir, pero que no pueden producir gametas funcionales, por lo cual no pueden reproducirse.        

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What do we call the area of land that drains into a specific river
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The area of land<span> that is drained by a particular </span>river<span> and its tributaries is </span>called <span>either a </span>river<span> basin or </span>drainage<span> basin. </span>
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Answer:

Tissue

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Explanation:

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It's B, Most them can make or produce their own food.
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One of the reasons why the fish population remains approximately the same from one generation to the next is because not all the eggs laid will survive to adulthood. There are several factors which bring about elimination of the the newly hatched eggs. Examples of these are predators and diseases which eliminate the young offsprings at different stages before they develop into adulthood. 
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