Huntington’s disease is caused by a defect in the genes, and it can be inherited. A. True
If all plants were to die, photosynthesis wouldn't occur and that would affect the ecosystem because every other biotic organism would not have oxygen to breathe.
Substrate Concentration I believe
Answer:
The answer is number two extinction happened, this was the time dinosaurs went extinct ebcause lack of sun because oh how much dirt was blown into the earth atmosphere becuase of the asteriod, third option is talking about big bang theroy so that dosnt apply!
Explanation:
