Answer:
oxygen
Explanation:
oxygen isn't necessarily a characteristic of life. it's more like an aspect of life
Answer: Really hope this helps you.
Explanation: it depends in what you are using it for if you are using it for math then it means a relation from a set of inputs to a set of possible outputs where the input and the output is related exactly.
Answer:
Adaptations develop when certain variations or differences in a population help some members survive better than others
Explanation:
The equation for photosynthesis is carbon dioxide + water > glucose + oxygen + water.
