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n200080 [17]
3 years ago
8

Which of the following is likely to indicate a chemical change?

Biology
1 answer:
Lerok [7]3 years ago
4 0
The answer is A

if this helped ur welcome if not im sorry
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After tissue repair is completed, factor XII catalyzes the formation of a plasma enzyme called kallikrein, that in turn converts
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Answer:

<h2>Plasmin</h2>

Explanation:

Plasmin is a proteolytic enzyme; that causes clevase of proteins, mainly derived from an inert plasma precursor known as plasminogen. When clots are formed within blood vessels, they removed by the activation of plasminogen to plasmin which may lead to their removal.

Plasmin is released as a zymogen called plasminogen (inactive form) from the liver into the blood stream (systemic circulation).

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What is true of better suited organisms in a population
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7(c)(i). The diagram 7.2 shows the materials used by Claudia for preparing
Alina [70]

Answer: Because she used cold water

Explanation:

Tea leaves contain different flavors that dissolve in water to give it its distinct taste as well as its color. If water is hot, the flavors will dissolve quickly due to the fast movement of the heated water molecules.

If the water is cold however, as is the case in the above scenario, the flavors will take longer to dissolve in the water which means that the tea's color will not change drastically leading to a light tea.

6 0
3 years ago
A student designs an experiment to test substances X, Y, and Z, to determine which one is a catalyst for the reaction: A + B ® C
guapka [62]
The effect of a catalyst is to increase the speed of the reaction, this is the speed at which reactants, A and B, are consumed, ant the product, C, is produced.


Given that when C is produced the solution bubbles, the bubbles are an indication of progression of the reaction.


The greater the speed of reaction, the earlier the reaction will end and the earlier the bubbles will stop.   


So the student can identify the catalyst because the bubbles will stop first.


Answer: <span>The test tube that stops bubbling first contains the catalyst.</span>
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The mucous membrane that lines the eyelids and is reflected over the anterior surface of the eyeball is the conjunctiva is calle
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