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EastWind [94]
3 years ago
11

Can anyone help with science please

Biology
1 answer:
katrin2010 [14]3 years ago
4 0
Question 8 is the 3rd bubble

question 9 is the 2nd bubble
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Look at the three bottles. What evidence is there that a chemical reaction took place?
gregori [183]

Answer:

color changed.

and the temperature changed.

Explanation:

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Biologists use ball-and-stick models to study complex molecules by representing atoms with balls and bonds with sticks. DNA is a
Vitek1552 [10]
Most models can't incorporate all the details of complex natural phenomena. For example, when measuring distances around the Earth it's convenient to model the Earth as a sphere, but this doesn't incorporate variations in distance because of mountain ranges, valleys and other topological features the traveler must traverse. Incorporating these additional details would make the model too complex for easy use. Since models must be simple enough that you can use them to make predictions, they often leave out some of the details.

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The conformation of molecules are based on probability. It fails to take into account the electronegativity of individual atoms. And it is ineffective in showing inorganic interactions with metals and such.
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3 years ago
Which class of enzymes catalyzes reactions involving the formation of double bonds?
vodka [1.7K]

Lyases

Lyases are class of enzymes that catalyzes reactions involving the formation of double bonds.

Lyases are class of enzymes that catalyzes the joining of C-C ( carbon to carbon), C-O (carbon to oxygen), and C-N (carbon to nitrogen) bonds by hydrolysis or oxidation. These bonds are usually held by the process of elimination which leads to the formation of new double bonds or cyclical molecules. Examples of lyases include; aldolase and adenylate cyclase.


8 0
3 years ago
Why its important that skull joints cannot move
kifflom [539]
<span> So that you wont will not crack your head or damage your brain. </span>
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3 years ago
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The r groups on amino acids determine their unique characteristics. how does an amino r-group on an amino acid behave at ph 7 in
Leviafan [203]

It serves as a base and gains a proton, which charges it positively.

What is amino acid?

Proteins are made up of substances called amino acids. Proteins and amino acids are the components of life. Amino acids are the byproducts of the digestion or breakdown of proteins. Amino acids are used by the body to create proteins that aid in the digestion of meals.

Organic substances known as amino acids have both an amino and a carboxyl group. They can be differentiated by the functional group R that is attached. Six of the twenty amino acids that make up proteins have R-groups that are either bases or acids.

To learn more about amino acids click on the link below:

brainly.com/question/21327676

#SPJ4

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1 year ago
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