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serious [3.7K]
3 years ago
8

Help me plssssss!!!!!!

Biology
1 answer:
Eduardwww [97]3 years ago
6 0
If it’s referring to sea floor spreading then the answer is D, I hate analogies but I think it’s talking about the mantle convection that slowly breaks away at the lithosphere
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Ls that tea is an impure substance? ​
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Answer:yes

Explanation:

Impure substance is a mixture of 2 or more molecules

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If an organism with the genotype AaBb produces gametes, what proportion of the gametes would be Bb? 3/4 None 1/2 1/4
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Communication and transportation have improved as a result of scientific advancements
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True.  Many innovators and inventors have used new scientific methods to develop and improve communication and transportation devices in many ways.  They were able to either make them faster or more fuel efficient.  They have also given rise to new ways to communicate such as the internet and have developed devices that make it easier for people to come together.

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Si se aparean especies diferentes como por ejemplo el cruce entre caballos y burros; podemos afirmar que si llegan a tener desce
White raven [17]

Answer:

El híbrido va a ser esteril.

Explanation:

En la cruza entre dos especies distintas, cuando ocurre, existen distintos mecanismos de aislamiento reproductivo, que son barreras que inhiben o interrumpen el flujo génico entre especies distintas. Es decir que no habrá exito reproductivo de estas cruzas. 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;
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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 (Equus ferus caballus) y un burro (Equus africanus asinus). 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 puede producir gametas funcionales, por lo cual no puede reproducirse.  

7 0
3 years ago
Genes code for the production of ________ which can control traits.
lara [203]

Answer:

protein

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