Make the selection that best completes the sentence.

Biology

2 answers:

alina1380 [7]3 years ago

4 0

C) is correct. All planets orbit the sun in an ellipse.

marta [7]3 years ago

4 0

The best answer would be C

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Soil rich in organic material will be what color<br> A Brown<br> B Black<br> C Red<br> D Tan

Bumek [7]

I pretty sure it will be A Brown

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4 years ago

If a molecule of CO2 released into the blood in your left toe is exhaled from your nose, it must pass through all of the followi

stepladder [879]

Answer:

a) the pulmonary vein

Explanation:

Veins are the blood vessels that carry blood to the heart.
Pulmonary veins are responsible for carrying oxygenated blood from the lungs back to the left atrium of the heart.
There are two right pulmonary veins, known as the right superior and right inferior veins.
The largest pulmonary veins are the four main pulmonary veins, two from each lung that drain into the left atrium of the heart.

Artery: pulmonary artery
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System: Circulatory system

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4 years ago

20 points and brainliest!! I NEED HELP!

mars1129 [50]

C. Hydrogen, oxygen

Hope this helps!

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3 years ago

Read 2 more answers

If every oxygen ion (combined with an aluminum ion) has a charge of –2, what must the charge of each aluminum ion be? How can yo

leva [86]

Each aluminium ion should have a charge of +2, because the sum of oxidation numbers must be zero.

The uncharged aluminium atom must lose two electrons to become an ion with +2 charge.
what has to happen to an uncharged aluminum atom so that it will bond with oxygen?

It has to lose electrons to become positively charged, so it can attract a negatively charged oxygen ion

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3 years ago

When a mitochondrial chaperone helps a mitochondrial matrix protein into the matrix by biased diffusion, the chaperone is said t

Elis [28]

Answer:

c. Brownian ratchet

Explanation:

Mitochondria are cell organelles. They are known as the power house of the cells. The energy needed to power the cell is generated by the mitochondria. They functions like a digestive system.

The mitochondria chaperone are proteins that helps the proteins along pathways for their folding. They shield the proteins from other proteins and protect them from binding the folding process. The chaperone are mainly concern with the folding of protein.

The chaperone acts as a Brownian ratchet as the mitochondrial chaperone guides the matrix protein into matrix by the biased diffusion process.

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3 years ago