Answer:
<u>15 </u>because one codon has 3 nucleotides
Explanation:
I think the crust is formed by volcanic activity
Those characteristics are cellular organization, reproduction, metabolism, homeostasis, heredity, response to stimuli, growth and development, and adaptation through evolution. Some things, such as a virus, demonstrate only a few of these characteristics and are, therefore, not alive.
Answer:
Climate change, shortage of natural resources, waste in the environment, decreasing biological diversity, toxic chemicals, water pollution, shortage of water resources and air pollution.
hope this helped!