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ohaa [14]
3 years ago
8

What Is Ebola? How did it start? How do you spread it?

Biology
1 answer:
Grace [21]3 years ago
3 0
Ebola is a deadly virus that tricks the body into damaging its own blood vessels. It originated near the ebola river when some animals probably bit someone or someone went into the river and got the virus inside of them through the nose, mouth, ears, open wounds, or other areas. The only way you can spread it is by getting one's body fluids that is infected with ebola (such as spit, mucus, or other fluids that come from the body), on somebody and the fluid somehow works its way into the body.
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¿Que factores del medio ambiente afectan los tegidos de los seres vivos?​
slava [35]

Answer:

Penetración de luz, p. Ej. el plancton crece mejor en las capas superiores de agua debido a la mayor intensidad de luz.

Las corrientes transportan organismos. ...

La acción de las olas mueve y daña a los organismos.

El contenido de sal hace que los organismos se adapten al agua dulce o salada. ...

La concentración de oxígeno es menor.

Explanation:

espero que haya ayudado

4 0
3 years ago
In an energy pyramid, which level has the least available energy?*
Harman [31]

Answer:

The very highest level; this is because of the 10% rule in which 10% of the energy in a trophic level directly below one level is present in that level.

6 0
3 years ago
Read 2 more answers
One of the traits that we looked at in class was a widow's peak (has peak is dominant, no peak is recessive). For each individua
Marina CMI [18]

Answer:

Explanation: 1) Individual who is bald but neither parents has a widow's peak: As having a peak is dominant and the individual is bald with parents that doesn't have the trait, the genotype is recessive, in the case ww;

2) Individual has a widow's peak: The individual's genotype can be WW, homozygous for the trait or Ww, heterozygous for the trait, depending on the genotype of the parents;

3) Individual can't roll their tongue: Being able to roll the tongue is a dominant characteristics, so if the individual can't roll their tongue means the genotype is recessive. But, there is little evidence that this trait is dominant or inheritable;

4) Individual has a widow's peak  but their mother does not: In this case, the genotype of the individual is heterozygous (Ww), because the mother is recessive (ww) and the offspring has the trait, so the father must have had it;

5) If an individual does not have a widow's peak (ww), which genotype would be impossible? If this individual crosses over with another individual with the same trait, their children will be all recessive for widow's peak (ww), so there is no possibility of an offspring with the trait;

If the initial individual crosses over with an individual with widow's peak, two possiblities can occur:

  • If the crossover is with an individual homozygous for the trait (WW): all their children will have widow's peak with genotype Ww. So, the possibility of not having the peak is 0;
  • If the crossover is with an individual heterozygous for the trait (Ww), there will be a probability of 25% for the children to have genotype WW, a probability of 50% for the offspring to be heterozygous (Ww) and has the trait and probability of 25% to be recessive (ww) and therefore doesn't have the trait;

8 0
3 years ago
Your textbook describes a field experiment using guppies that was conducted to test natural selection. complete the sentences ab
denpristay [2]
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8 0
2 years ago
What is commensalism
IgorLugansk [536]

Answer:

An association between two organisms in which one benefits and the other derives neither benefit nor harm.

Explanation:

8 0
3 years ago
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