Answer:
oxygen gas
Explanation:
because oxygen is needed for life on Earth
If you eat unhealthy now then you could develop health issues such as diabetes heart problems wating disorders and cause obesity if you eat unhealthy then you probably won't live as long of a life as compared to someone who has been eating healthy and the if you eat good now you can love a longer life with less problems
Answer:
I think is B because at stage 4 we can observe that different kinds of cell formed(the cell on the edge is different from the inner cell)
Explanation: