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3 years ago

12

_________ is the manipulation of the DNA of cells to change hereditary traits or produce biological products. A.Selective breedi

ng B.Genetic engineering C.Mutation D.Radiation

1 answer:

Savatey [412]3 years ago

7 0

C. Mutation is the right answer.

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Stellar evolution is the life cycle of a star. A cycle suggests that upon death of a star, another star is born. How is this pos

ANTONII [103]

This is possible because when a star dies, it basically expands to its maximum (explodes). Therefore, the materials of the exploded star mix with the primeval hydrogen of the Universe. Later, other stars are formed out of this mixture. Thats also how the sun was formed. :)

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3 years ago

All parts of nonvascular plants must be near water because they have…

tiny-mole [99]

Answer:

B) Tiny roots.

Explanation:

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Hope this helps!

<3

-Josh

brainliest if correct?

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3 years ago

Over time, a tadpole changes into a frog. Has it evolved?

patriot [66]

It has not. Evolution is not a process that can happen to individual organisms; it's change that happens to a species over many generations.

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3 years ago

Read 2 more answers

Evolution is the

lina2011 [118]

Answer:

Evolution is the <u>biological process</u> that happens over time in a population, giving rise to new <u>species.</u> The theory of evolution states that all organisms alive on Earth today <u>have a common ancestor</u> which lived <u>years ago</u>.

Explanation:

Evolution is one of the fundamental reason of diverse life on Earth today. Principally, this process takes place by changes in genetic elements via mutations and crossing-over. The positive changes (mutations) allow the organism to develop better condition in order to survive in changing environmment. However, if the changes takes place at major scale, it also leads to the creation/development of new species. To explain this further, I have added a photograph where we can see how different organisms were evolved in the history of Earth.

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3 years ago

Way an egg is so much larger then a sperm cell, need help.

Dmitry_Shevchenko [17]

Answer:

The egg contains both food and mitochondria in addition to its vital DNA, thats why it is much larger. The sperm cell has to be much smaller than the egg cell, because it is the one that swims. If a sperm cell were as big as an egg, it would not be able to move very fast nor very far.

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3 years ago