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allochka39001 [22]
3 years ago
13

What does blood deliver to every part of the body

Biology
1 answer:
Maurinko [17]3 years ago
8 0
It delivers energy as it circulates blood
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Que tipo de aislamiento reproductivo exhibe la mula?
bulgar [2K]

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:
  • Ecológico o por aislamiento de hábitat;
  • Estacional o temporal;
  • Sexual o etológico;
  • Mecánico;
  • Por incompatibilidad de gametas.  

   2. Post-copulatorios o cigóticos:

  • Inviabilidad del híbrido;
  • Esterilidad del híbrido;
  • Híbrido con viabilidad o fertilidad disminuido;
  • Interacciones citoplasmáticas.

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.        

4 0
3 years ago
The steps in which solar wind is formed
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Solar wind is a stream of charged partials released from the upper atmosphere of the sun. this plasma consists of mostly of electrons, protons and alpha partials with thermal energys betwqeen 1.5 and 10 kev
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What did Many nations agree To do To help deal with climate change
Ilia_Sergeevich [38]

Answer:

Build homes and stable environments for people to live in during the bad weather.

7 0
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Neurons are brain cells. Where would a new neuron come from?
Paladinen [302]
Cells break into 2’s and keep breaking apart
5 0
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How does gravity keep the moon in orbit
lilavasa [31]

Answer:

here it is

Explanation:

The Sun's gravitational pull keeps our planet orbiting the Sun. The motion of the Moon is affected by the gravity of the Sun AND the Earth. The Moon's gravity pulls on the Earth and makes the tides rise and fall every day.

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