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2 years 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]2 years 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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The cell walls of plants and algae have openings, or channels. How is this structure most likely related to the functioning of a

mestny [16]

Answer:

It allows water and other molecules to enter and exit the system.

Explanation:

Plants have both a cell membrane and a cell wall. These allow needed molecules, such as water, to enter the cell. Both the cell wall and the cell membrane are semi permeable, which means that they choose what can enter and leave the cell. Molecules like water and other useful things to the cell enter it, and things such as waste leave the cell through the membrane and wall.

Remember that only plant cells have cell walls. Animal cells only have a cell membrane. But both the wall and membrane have the same purpose.

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3 years ago

The part of Earth that supports life is a(n) ____.

guajiro [1.7K]

The part of Earth that supports life is called as the earth's Crust .

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3 years ago

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What is the probability of producing a child that will phenotypically resemble either one of the two parents in the following fo

Rashid [163]

Complete question:

What is the probability of producing a child that will phenotypically resemble either one of the two parents in the following four cases? How many phenotypically different kinds of progeny could potentially result from each of the crosses?

a. Aa Bb Cc Dd × aa bb cc dd

b. aa bb cc dd × AA BB CC DD

c. Aa Bb Cc Dd × Aa Bb Cc Dd

d. aa bb cc dd × aa bb cc dd

Answer:

a) the probability of producing a child that will phenotypically resemble either one of the two parents is 1/8.

There will be 16 possible phenotypes among the progeny

b) the probability of producing a child that will phenotypically resemble either one of the two parents is 1.

There will be one possible phenotype among the progeny

c) the probability of producing a child that will phenotypically resemble either one of the two parents is 81/256 = 0.316.

There will be 16 possible phenotypes among the progeny

d) the probability of producing a child that will phenotypically resemble either one of the two parents is 1.

There will be one possible phenotype among the progeny

Explanation:

Due to technical problems, you will find the complete explanation in the attached files

Download pdf

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3 years ago

Which sentence best describes a cell that is isotonic for a substance?

ZanzabumX [31]

The answer would be C) The solute concentration is equal on both sides of the cell membrane.
This is correct because in an isotonic solution, they would have the exact salt concentration as the blood surrounding the cell. There won't be an effect on the surrounding cells. So, the cells won't gain or loose any water.
Hope this helps!:)

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2 years ago

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What is the definiton of revolution

ololo11 [35]

A forcible overthrow of a government or social order, in favor of a new system

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3 years ago

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