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1 year ago

Why cant most stars can make elements like gold and iron

2 answers:

6 0

When a star is fusing iron in its core, it's still giving off insane amounts of energy. ... Iron cannot be fused into anything heavier because of the insane amounts of energy and force required to fuse iron atoms. The atomic structure of iron is very stable, more so than most other elements.

julsineya [31]1 year ago

6 0

Answer:

when a star is fusing iron in its core, it's still giving lots amounts of energy Iron cannot be fused into anything heavier because of the insane amounts of energy and force required to fuse iron atoms.

Explanation:

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All the members of a species that live in an area make up

igomit [66]

Answer:

Population

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2 years ago

You have been growing some animal cells in a test tube. The cells grow for several days, then do not appear to grow as well. You

svetlana [45]

Answer:

D. There is no enough oxygen in the culture fluid

Explanation:

The cells in the test tube need to carryout one of the important metabolic processes of living organisms - respiration. The process involves the breakdown of glucose to generate energy for other metabolic processes in the cell.

Respiration can be carried out in the presence of oxygen (aerobic) or in the absence of oxygen (anaerobic). Human cells are primarily aerobic but can carryout respiration anaerobically in the presence of inadequate oxygen.

For aerobic respiration, glucose is broken down in the presence of oxygen to produce carbon-dioxide, water and energy in the form of ATP:

$C_6H_1_2O_6 + 6O_2 --> 6CO_2 + 6H_2O + ATP$

In the absence of oxygen, the glucose becomes converted to lactic acid and a smaller amount of ATP is produced as compared to aerobic respiration.

Hence, lactic acid gradually builds up in the absence of oxygen due to anaerobic respiration.

The correct option is D.

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2 years ago

Read 2 more answers

Que es una escala musicál?

yulyashka [42]

Hola!

En la teoría de la música, una escala es cualquier conjunto de notas musicales ordenadas por frecuencia o tono fundamental. Una escala ordenada al aumentar el tono es una escala ascendente, y una escala ordenada por un tono decreciente es una escala descendente.

¡Espero que esto ayude!

~Lauv

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2 years ago

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What is chemiosmosis?

Karo-lina-s [1.5K]

Answer:

The harvesting of energy from ATP to do cellular work

Explanation:

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2 years ago

Some cells live for years, while others live for only a few days. Why do some cells get replaced faster than others?

Vladimir [108]

Answer:

Some cells don't divide and last you a life time such as many of those in the central nervous system other cells such as stems called cell populations have their telemeres repeatedly extended by the enzyme telomerase other cells are never replaced and live as long as we do .

I hope this answer might help u 

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2 years ago