BIOLOGY HIGH SCHOOL

Coal is the biggest source for _________.A).transportation
B).gas stoves
C).heating homes
D).producing electricity

Answers

Answer 1
Answer: Coal is the biggest source of energy for the generation of electricity.
so the answer is D) producing electricity :))))
I hope this is helpful
have a nice day

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Which one of the following statements holds true for the induced-fit model?a. Once the enzyme binds to the specific substrate molecule, no structural changes can occur in the active site of the enzyme.
b. Once the enzyme binds to the specific substrate molecule, structural changes can occur in the active site to accomodate the product.
c. Once the enzyme binds to a specific substrate molecule, subtle structure changes occur in the active site, which are reverted when the reaction is over.

Answers

C. once the substrates bind to the enzyme, the active site of the enzyme changes, to the shape of the substrate. Once the product detaches from the enzyme, then the active site returns to it's normal shape

Why are food preservatives added to food?

Answers

The preservatives discourage the enzymes and stop the process of oxidation, so that it becomes a bad place for microorganisms to stay
Food additives are used to increase shelf life, meaning the food can sit in grocery stores and/or our homes for a longer time before spoiling.

PLEASE HELP!!!!!!!!!!!!!!!

Answers

The answer for your question is B

Answer:

x=8, B

Explanation:

3(x+1)+6=33

3x+9=33

3x=24

x=8

Describe how cell cycle is regulated

Answers

Through the phosphorylation, Cdks signal the cell that it is ready to pass into the next stage of the cell cycle. As their name suggests, Cyclin-Dependent protein Kinases are dependent on cyclins, another class or regulatory proteins. Cyclins bind to Cdks, activating the Cdks to phosphorylate other molecules.

Sea cucumber are members of this phyluma.Porifera (sponges)
b.Cnidarians
c.Nematoda
d.Platyhelminthes
e.Annelida
f.Echinodermata
g.Mullusca
h.Arthropoda

Answers

f. echinodermata is the correct answer

Upon vigorous exercise, your heart rate increases to 200 beats per minute to supply sufficient oxygen to muscles. Which is responsible for this regulation of the heart rate? A. Semilunar valvesB. Sinoatrial node
C. Aorta

Answers

I think the correct answer from the choices listed above is option B. The one that is responsible for the regulation of the heart rate is the sinoatrial node. It is the heart's peacemaker. It is a specialized bundle of neurons which controls the cardiac function. Hope this answers the question.

Answer:

The correct answer would be option B.

Sinoatrial node is also known as heart's pacemaker as it controls the heart rate.

It consists of cluster of cells in upper region of the right atrium. These cells generate electrical signals which are passed onto atrioventricular node.

It is the cluster of cells which is located at the centre of the heart.

It passes and slows down the electric signals to the ventricles.
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