Dr. jekyll needed which of these ingredients to make another batch of his potion?

1 answer:

4 0

The ingredient that Dr. Jekyll thought that he needed is salt to make another batch of his potion. However, he found out later that it was not this ingredient but the impurity in it that was the vital chemical in his potion.

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the solution inside a plant cell is approximately a 1% saline solution. in a 25% nacl solution the cytoplasm of a plant cell wil

mrs_skeptik [129]

<span>The cell has 1% concentration of the salt. The external environment is highly concentrated with 25% saline solution. This will lead to release of water outside the cell, by passive diffusion from a region of high conentration of solvent to lower concentration. Thus, the cell will shrink.</span>

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3 years ago

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Alone in the woods, Pedro hears a noise. He thinks he sees a bear coming toward him. His heart starts pounding and then, a momen

pishuonlain [190]

<h2>Cannon -Bard theory</h2>

Explanation:

Alone in the woods, Pedro hears a noise. He thinks he sees a bear coming toward him. His heart starts pounding and then, a moment later, he realizes how frightened he is. This sequence of events is BEST explained by the <u>Cannon-Bard t</u>heory of emotion.

According to Cannon-Bard theory, all the emotional expressions occur due to the stimulation of hypothalamic structures present in brain. This theory also states that feeling and physiological effects of an emotional stimuli occurs simultaneously.

Here, James thinks that a bear is coming, this is a stimulus. His heart starts pounding that is the physiological effect of the stimulus and the next moment he feels frightened which is a feeling.

So we conclude that in this case, the physiological effect and feeling of emotion occurred simultaneously. So these sequence of events is best explained by Cannon-Bard's theory.

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2 years ago

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musickatia [10]

<span>When practicing birth control as natural family planning, it is not true that it is almost 100 percent effective. Birth control as natural family planning does require careful tracking of the menstrual cycle, demands focus on bodily changes, and does require women from having sex on days ovulating and following. Even if sex is is had outside ovulating days, it is possible to get pregnant, thus it is not 100 percent effective.</span>

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3 years ago

Can someone please help me with meassuring pH lab report edge

Nezavi [6.7K]

Answer:

hey i am sending you the link from that link you can find your answers

Explanation:

https://acrobat.adobe.com/link/review?uri=urn:aaid:scds:US:55617ca4-6031-3011-a5b5-356b52d34d36

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1 year ago

Why is a person with type AB blood able to receive a blood transfusion from a donor with any of the major blood types (A, B, AB,

Alisiya [41]

Answer:

ABO blood grouping system is based on presence or absence of three types of antigen on red blood cells. A and B blood group have A and B antigens respectively. AB blood group has both A and B antigens. O blood group does not have any antigen.

A body with particular blood type will consider other blood group foreign ( because it has different antigen ) and produce antibodies against it. A person with blood type A can not be given B type blood because the antibodies in his body will destroy RBCs with B antigen which may even prove fatal.

AB blood type person can receive blood from both A and B blood groups because he has antigens for both of them so it will produce antibodies for neither of them. He can also receive O type blood because O blood does not have any antigen so it can be given to any person without incompatibility reaction.

However, AB individual can only donate blood to AB individual because his blood cells have both A and B antigens. So, he can only donate blood to an individual who does not produce antibodies for both A and B blood groups and that would only be another AB blood type individual.

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2 years ago