A scientis could see the DNA and probably not know the exact age but a close guess to how old he is
I think C, because genetic variation enables some individuals to adapt to the environment while maintaining the survival of the population
It is undoubtedly b ....so go for that !
Answer:Number one is "D"
Explanation:
Good thing i'm learning about this right now, Cellular Respiration needs Oxygen and hydrogen and photosynthesis needs Carbon and hydrogen.
Answer:B. The variety of species in an ecosystem
Explanation: