After running home from school, a girl wants to know how the carbon dioxide she is exhaling is produced. Which explanation BEST answers A. It is waste released from the heart.
B. It is an energy source from the lungs.
C. It is waste produced by the cells in her body.
D. It is an energy source produced by the cells in her body.
her question?

Answers

Answer 1
Answer: b it is an energy source from the lungs
Answer 2
Answer: Well its not A. So i would say B

Related Questions

Match the following methods of movement with the appropriate protozoan. 1. cilia amoeba 2. flagellum euglena 3. pseudopodia paramecium
What type of symbiosis is benificial of for both organisms?
What plant cell organelle helps maintain the shape of the cell by helping to maintain turgor pressure?
List and describe two ways that scientists can date fossils found in the earth.
Read this sentence by Ralph Ellison:When I discover who I am, I'll be free.The author uses the word discover to emphasize which idea about freedom?A. It requires a journey of self-knowledge.B. It's made possible through education.C. It means following a set path.D. It's an impossible task for everyone.

Most scientific questions are based on??

Answers

Are based on observations
usally biology or chemistry

What is the point of having celcius and farenheit... why not just celcius?​

Answers

Answer:

See explanation

Explanation:

Celcius was created before fahrenheit was. America created the imperial system and decided to be different.

Similarity between homozygous and heterozygous

Answers

If you are speaking of genetics, the only real similarity between the two is that they are terms used to describe alleles that are found on a particular gene. If you have homozygous alleles, then both of them are the same. If you have heterozygous alleles, then the two of them are different. In the case of sex chromosomes, females are homozygous, having XX while males are heterozygous, having XY.

what name is given to the membrane potential that must be reached in order for an action potential to be triggered?

Answers

Answer:

the Threshold potential

Explanation:

What is required for reactants to form bonds?

Answers

Initial energy input that meets or exceeds the activation energy (the amount of energy needed for this is different for all reactions).
This is true for both endothermic and exothermic reactions, because energy must be supplied to break the bonds holding the atoms of the reactants together before they can rejoin in a different combination (to form the products)

Final answer:

For reactants to form bonds, there must be an initial energy input to drive the collision of atoms, ions, and molecules. This collision enables the breaking and formation of bonds. Both synthesis and exchange reactions demonstrate this process.

Explanation:

In order for reactants to form bonds during a chemical reaction, a few conditions must be met. Firstly, an initial investment of energy is required. This energy, often in the form of heat, provides the kinetic energy necessary to fuel the collisions of atoms, ions, and molecules. This collision must occur in an orientation that allows contact between the atoms that will become bonded together in the product. Secondly, the particles of reactant must come into contact with each other before they can react. This could be a direct collision or through another medium that facilitates the interaction.

Once the reactants collide, bonds are broken in the initial molecules, and new bonds are formed to create the product. Energy is required for breaking old bonds and is released when new ones are formed. This process can be seen in both synthesis reactions (two components bond to form a larger molecule) and exchange reactions (bonds are both formed and broken as components of the reactants are rearranged).

Learn more about Bonds formation here:

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Most places on Earth experience one low tide and one high tide each day.TRUE OR FALSE
ANSWER ASAP

Answers

most have two low tides and two high tides a day, while some have one low tide and one high tide , so technically false