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3 years ago

WHERE DID MOST OF THE EARTHS ATOMS COME FROM

2 answers:

6 0

These hydrogen atoms can come together in nuclear processes called fusion, which is the process that powers the sun, and through fusion, heavier atoms such as carbon and nitrogen are produced. These in turn undergo fusion to make even heavier atoms, and it is such processes that created all the atoms in the earth.

Sedbober [7]3 years ago

4 0

Answer:

Earth formed from debris orbiting around our sun about 4 billion years ago. That is also the guessed age of the sun. The story really begins with the Big Bang nearly 14 billion years ago, which spewed hydrogen atoms throughout the universe

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The process that creates The specialized cells like blood cells nerve cells or bone cells is called

slavikrds [6]

Differentiation is the process that creates specialized cells.

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3 years ago

6. species Closely related of orchids never mate in the wild because they bloom at different times. This is an example of ______

Dimas [21]

Answer:

temporal reproductive isolation

Explanation:

The correct answer would be temporal reproductive isolation.

Reproductive isolation generally refers to series of biological mechanisms or processes that prevent members of different species from mating/fertilization or prevent the product of their mating to be invalid.

Some reproductive isolation processes prevent members of different species from mating or prevent fertilization as a result of mating. These processes are known as pre-zygotic reproductive isolation mechanisms.

Some other processes ensure that the product of fertilization (when it occurs) is invalid. These are known as post-zygotic isolation mechanisms.

A good example of the pre-zygotic reproductive isolation process is when closely related by different species bloom at different times. This will prevent mating or cross-pollination to happen between the different species. This is known as temporal reproductive isolation.

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2 years ago

What is the fitness of an organism

sashaice [31]

Answer:

Darwinian fitness

Explanation:

it is able to produce offspring of itself and help it to Maintain the population of an organism

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3 years ago

If you dissected an owl pellet and found several of the skulls shown, what would you conclude is the preferred prey of this owl?

zavuch27 [327]

Answer:

The answer is C. mouse

Explanation:

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3 years ago

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3 years ago