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AlekseyPX
3 years ago
13

What do scientist do if there hoptestisis is wrong?

Biology
1 answer:
Amiraneli [1.4K]3 years ago
4 0
If a HYPOTHESIS is wrong scientists come up with a conclusion, the hypothesis doesn't matter for the result. It is just an educated guess based on the results they expect our hope the achieve.
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A red blood cell placed in a hypertonic solution will shrink in a process called crenation. A red blood cell placed in a hypoton
Zolol [24]

The correct answer is:


A: 3.21% (m/v) NaCl Solution will cause crenation because it is hypertonic solution (more solutes)  

B: 1.65% (m/v) glucose Solution will cause hemolysis because it is hypotonic solution


C: distilled H2O Solution will cause hemolysis because it is hypotonic solution


D: 6.97% (m/v) glucose Solution will cause crenation because it is hypertonic solution (more solutes)


E: 5.0% (m/v) glucose and 0.9%(m/v) NaCl will cause neither crenation or hemolysis because it is isotonic solution.



5 0
3 years ago
Read 2 more answers
A swine producer wants to know if the average weight of his pigs is different from the breed average of 230 lb. He selects a ran
Aloiza [94]

Answer: t= -1.60

Explanation:

Let \mu be the population mean weight of pigs.

As per given , we have

H_0:\mu=230

H_0:\mu\neq230

Sample size : n= 16

Sample mean =\overline{x}=220\ lb

Sample standard deviation : s=25\ lb

<em>Since the population standard deviation is not known so the test is a</em><em> t-test.</em>

Test statistic for population mean : t=\dfrac{\overline{x}-\mu}{\dfrac{s}{\sqrt{n}}}

t=\dfrac{220-230}{\dfrac{25}{\sqrt{16}}} (Substitute all the values.)

t=\dfrac{-10}{\dfrac{25}{4}}

t=\dfrac{-40}{25}=-1.60

Hence, the value of the test statistic needed to test the null hypothesis : t= -1.60

7 0
3 years ago
Why is it important for both eukaryotic and prokaryotic cells to go through cell division?
Naya [18.7K]

Answer:

La división celular es una parte muy importante del ciclo celular en la que una célula inicial se divide para formar células hijas.1​Debido a la división celular se produce el crecimiento de los seres vivos. En los organismos pluricelulares este crecimiento se produce gracias al desarrollo de los tejidos y en los seres unicelulares mediante la reproducción asexual.

Los seres pluricelulares reemplazan su dotación celular gracias a la división celular y suele estar asociada con la diferenciación celular. En algunos animales la división celular se detiene en algún momento y las células acaban envejeciendo. Las células senescentes se deterioran y mueren debido al envejecimiento del cuerpo. Las células dejan de dividirse porque los telómeros se vuelven cada vez más cortos en cada división y no pueden proteger a los cromosomas como tal.

Las células hijas de las divisiones celulares, en el desarrollo temprano embrionario, contribuyen de forma desigual a la generación de los tejidos adultos.

Explanation:

6 0
3 years ago
Listed in blue, please help!! Is biology and chemistry two different things and why?
Anna35 [415]

Answer:

Yes they are two different things!

Explanation:

Chemistry is more basic to existence-it is the study of the composition of matter and all associated structures, properties, and reactions. This includes, but is not limited to, biological matter. Biology meanwhile is focused entirely on biological organisms.

8 0
3 years ago
Read 2 more answers
The main source of energy for our planet is/are
marusya05 [52]
The sun! It's solar radiation heats our planet, gives us light, and sustains life.
6 0
3 years ago
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