Answer:
The double-helix shape allows for DNA replication and protein synthesis to occur. In these processes, the twisted DNA unwinds and opens to allow a copy of the DNA to be made. ... As the new strands form, bases are paired together until two double-helix DNA molecules are formed from a single double-helix DNA molecule.
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With less oxygen there is less carbon dioxide being produced for the plants so photosynthesis decreases.
Reaches earth by Radiation
C. Carbon
Mercury is dangerous to humans
Carbon is the main element in organic compounds, so carbon is essential to life on Earth.
Answer:
3.
Explanation:
Since the snake was introduced, many species were killed off which severely impacted food chains and webs
