Answer:
organ systems
Explanation:
cells combine to form tissues, tissues combine to form organs, and organs combine to form organ systems such as the digestive system.
According to my observations the best answer is the option C.<span>The DNA strands are so arranged that you can never have two 5' or 3' at one end.
</span><span>As,they are anti-parallel and for that reason, one strand goes 5'-3' and the other goes 3'-5' respectively.
I hope its helpful.
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A mammal is any animal that has hair,three middle ear bones,and mammary glands.Mammals give live birth as well.
Photosynthesis:
<span>6CO2 + 6H2O + energy yields C6H12O6 + 6O2 </span>
<span>Respiration: </span>
<span>C6H12O6 + 6O2 yields 6CO2 + 6H2O + energy </span>
