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inna [77]
2 years ago
9

Select all that apply. What is the difference between DNA and RNA?

Biology
1 answer:
In-s [12.5K]2 years ago
7 0
If I'm not mistaken the answer is B
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What happens to urchins if the oxygen percent concentration drops too low for an extended period of time?
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Since sea urchins are picky, they are used as indicator organisms in public aquariums to determine if the system is functioning properly. This is because they are very "picky" about water quality. If the water is contaminated, the sea urchins will be the first to show signs of stress, spines laying down or falling off. Do use an aquarium filter and do clean up the day after feeding. Any metal exposed to the seawater will corrode and poison the tank. A dying sea urchin will often spawn out and rot out, causing the others in the tank to spawn and die as welll.

Explanation:

7 0
2 years ago
Which of the following scenarios refutes the argument that genes are entirely internally influenced?
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3 years ago
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julia-pushkina [17]

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Option (1), (2) and (3).

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DNA is the genetic material of all the living organisms present on earth. The DNA contains the nitrogenous bases, pentose sugar and the phosphate group. DNA strands runs in the opposite direction and shows polarity.  

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Thus, the correct answer is option (1), (2) and (3).

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