Answer:
A major obstacle life would have to overcome is having only a limited amount of natural light and then the rest of the time is darkness.
Answer: Positive effects: Disease prevention, agriculture, transplants, pharmaceuticals
Negative: Herbicides, pesticides, mutations
Explanation:
A. umbilical cord is the answer
Answer:
i think it should be monerans e.g blue-green algae
One specific concern is the possibility for GMOs to negatively affect human health. This could result from differences in nutritional content, allergic response, or undesired side effects such as toxicity, organ damage, or gene transfer