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Cloud [144]
3 years ago
6

the cell membrane of a red blood cell will allow water , carbon dioxide, oxygen and glucose to pass through. Because other subst

ances are blocked from entering, this membrane is called ______

Biology
1 answer:
frosja888 [35]3 years ago
3 0
Amino acids, sugars, and ions move<span> across </span><span>the cell membrane</span>
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7 0
3 years ago
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If the pig is on its back, the one doing dissection would say the pig is on the
Fudgin [204]

Answer:

Ventral

Explanation:

This is because when you want to dissect a pig, it's back is place on a dissecting tray and it's belly side is up which is the ventral side. With the ventral side, dissection will be easy and the major organs and systems can be observed easily as they will be rightly viewed because they are obvious and rightly placed at belly side up.

5 0
2 years ago
5. In 1928, Alexander Fleming noticed that a mysterious blue-green fungus had grown on some bacterial colonies that were known t
Otrada [13]

Answer:

The steps that can be seen in this story are observation and the questioning phase, which can also be called elaboration of the problem.

Explanation:

The scientific method is a set of phases that are able to guide researchers to the creation of scientific knowledge, through an experiment. This method is essential for conducting scientific research, allowing an experiment to be managed in a way that promotes answers to scientists' questions. The scientific method presents the phases called observation, questioning (or elaboration of the problem), elaboration of hypotheses, experimentation, analysis of the results and conclusion.

In the story shown in the question above, we can see the phases called observation and questioning. The observation takes place the moment Fleming noticed a fungus capable of growing on colonies of bacteria that cause throat infections, killing them. This observation made him enter the questioning phase, when he wondered if the fungus was able to prevent the growth of these bacteria.

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3 years ago
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