To remove all fall risks in the area,(rugs, electrical cords, O2 tubing..etc)
Answer:1.Selection of the dark-colored moths over light-colored moths after industrial evolution is an example of directional selection while selection of alpha males and “sneaking” males over intermediate males in a lobster population is an example of disruptive selection.
2.organism in which they occur. They are called beneficial mutations. They lead to new versions of proteins that help organisms adapt to changes in their environment. Beneficial mutations are essential for evolution to occur.
Explanation:
i really hopes this helps
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.
- 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.
C) electrician
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Answer:
Option B, Move closer to your home town
Explanation:
The options for the given question are as follows -
A) Knock down your previous house and build a bigger one.
B) Move closer to your home town.
C) Move further away from your home town.
D) Stay where you are but speed up your daily life
Solution -
Electrons carry negative charge while nucleus carries positive charge due to the presence of positively charged proton ions and neutral ions (which has no charge). All the electrons are attracted towards the nucleus due to its positive charge. The orbit on which an electron revolves around a nucleus has higher energy level as compared to the energy levels located in between the space of electron and nucleus.
While moving from a high energy orbital to a low energy level orbital, an electron releases some energy. Hence, in order to move closer to home, electron needs to push itself toward the nucleus by releasing energy
Hence, the given option is B
