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loris [4]
4 years ago
9

Nefario was trying to determine the cause of a mysterious epidemic affecting fish in the gulf of New Mexico. He observes that th

e number of protists in the area has risen since the fish started falling ill. His proposal that the deaths were caused by an organism called a protist is considered?
Biology
1 answer:
Alex4 years ago
8 0

Answer:

Hypothesis

Explanation:

  • A proposal that is given based on limited evidence using which a further point can be explained is considered as a hypothesis.
  • A hypothesis is an explanation that is proposed to explain why a particular phenomenon is occurring when there is no conclusive evidence for the cause.
  • In the given scenario, the observation made is that the fish have started falling ill since the number of protists in the area have increased, however this fact is not enough to conclude that the protists are the reason for causing illness to the fish but this could be one of the possible reasons and hence, the proposal given by Nefario is considered as a hypothesis.
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Asi todas las células son muy pequeñas. ¿Qué limitaciones físicas y metabólicas determinan el tamaño celular? ¿ A qué problemas
N76 [4]

Answer:

- Limitación física: la relación superficie volumen es baja para un intercambio eficiente de sustancias con el medio

- Limitación metabólica: en principio no existen limitaciones metabólicas  

Explanation:

La membrana celular es una estructura fundamental para el funcionamiento celular, ya que de la membrana celular depende el intercambio de nutrientes y desechos por parte de la célula con su entorno (medio extracelular). En células muy grandes la relación entre la superficie cubierta por la membrana y el volumen celular es muy baja, lo cual dificulta el intercambio de compuestos (tanto nutrientes como desechos) con el medio extracelular. Por otro lado, los mecanismos metabólicos en principio no deberían verse afectados por el tamaño celular. Por ejemplo, los perfiles metabólicos de expresión génica son independientes del tamaño celular y están adaptados a diferentes tipos celulares, desde una célula huevo que es proporcionalmente varias veces más grande que un célula diferenciada la cual sin embargo no ha perdido la capacidad de dividirse, un ejemplo de esto son las células cancerosas derivadas de células epidérmicas diferenciadas las cuales poseen la capacidad de dividirse y de proliferar indiscriminadamente.

5 0
3 years ago
Suppose the DNA strand from the question above was exposed to
Nana76 [90]

Answer:

Substitution

Explanation:

Substitution

7 0
3 years ago
Pea plant clones are given different amounts of water for a three-week period. First pea plant receives 400ml. Second pea plant
borishaifa [10]

Answer: The independent variable is the different amount of water. The correct option is A.

Explanation:

A variable can represent age, a person, or an entity that can be measured. In statistics, it is simply defined as an attribute of an object to be investigated. There are different types of variables these includes:

--> Dependent variable and

--> Independent variable.

Dependent variables are simply the variables that are affected by the changes that occurs in the experiment. From the experiment they should include:

--> the height of the plant,

--> the size of the plant,

--> the number of leaves

---> if the plant survived or not (dead).

Independent variable are the variables that are changed in the experiment. A good example from the pea plant experiment is WATER. It is the aspect that is used to alter the dependent variable which is the height of the pea plant. I hope this helps, thanks!

4 0
3 years ago
It is possible for a genetic male to have the anatomic appearance of a female.
MakcuM [25]
True, but that cannot happen naturally
6 0
3 years ago
Mosquitoes are pesky bugs that get their food supply from the blood of mammals. In order to make the blood easier to suck up, th
Dima020 [189]

Answer:

yes, because parasitism helps only one organism and hurts the other. we get poisoned, they get fed

7 0
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