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vlada-n [284]
2 years ago
14

I need the answer for 8 PLEASE ASAPPPP!!!!!!

Biology
1 answer:
melisa1 [442]2 years ago
8 0

Answer:

B

Explanation:

Reproduction

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If an organism cells all contain the same DNA why does one cell become bone while another cell becomes lung tissue
ExtremeBDS [4]

Answer:

very interesting question. it all has to do with DNA, which is a long strand of molecules. basically, only certain parts of the DNA, called genes, are used to in every cells. for instance, a bone cell will only use genes that allow it to build or break down bone

Explanation:

5 0
3 years ago
True or false? A mating between a tetraploid individual and a diploid individual produces biologically fit offspring.
Katyanochek1 [597]

A cross between a diploid individual and a tetraploid individual produces triploid offspring.  There are many species of plants that are triploid, but those come from crosses between two triploid individuals. In those cases, the chromosomes from one parent match up with the chromosomes from the other parent just fine. The same is not true with a cross of a tetraploid and a diploid.  In that case, one third of the chromosomes are unmatch, causing many offspring to die, to be sterile, or to be generally unfit.  Long story short, the answer you seek is False.

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sertanlavr [38]
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Which statements about the production of ATP ATP in chloroplasts are true? The production of ATP ATP in chloroplasts does not re
Lostsunrise [7]

Answer:

A proton gradient is generated by the transport of protons into the thylakoid lumen.

Protons move from the thylakoid lumen to the stroma through ATP synthase, producing ATP.

Explanation:

During photosynthesis, the environment is made acidic inside the lumen i.e. H⁺ are pumped into thylakoid lumen from stroma as a result of which more H⁺ are present in the thylakoid lumen as compared to stroma. It happens during light dependent reaction of photosynthesis. The concentration of H⁺ is already higher in lumen and transfer of more and more H⁺ from stroma increases the concentration of H⁺ even more leading to generation of a potential gradient. These H⁺ subsequently tend to move freely from lumen to stroma via "reverse pumps known as ATP synthase". The reason why these are known as reverse pumps is because pumps usually move particles from lower to higher concentration which is an active movement i.e. not natural so such movement requires energy. Naturally particles move from higher to lower concentration gradient until the concentration becomes equal on both the sides but pumps act opposite of this natural process and move particles from lower to higher concentration and utilize energy to do it. But here H⁺ are moving from higher to lower concentration which occurs naturally so ATP synthase rather than using energy tend to generate energy and this free energy is used to generate ATP from ADP & Pi (inorganic phosphate).

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3 years ago
The ____ is a poem is not the author
Svetlanka [38]
             I would go with D, speaker. A poem is written by an author, but the author isn't always the speaker.
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