GMOs have a ton of pros and cons, so it's hard to say. Although, I personally would like to avoid them. With the amount of people who have gone gluten free, there's more of a reason for it than being a hipster or a yuppie. Because the demand for wheat is so high, we had to genetically modify it. Although this increased its abundance, a lot of humans' digestive systems haven't evolved with it. That is the reason why it makes so many people sick, because they cant digest it. If the rate at which GMOs are being created and nourished continues, it's likely our digestive systems will reject it, possibly causing famine due to the inability to eat our own food.<span />
The correct option is this: A STUDY BY DR BIRDIE SHOWED THAT THE NUMBER OF SONGBIRDS IN HER YARD INCREASED DUE TO A MODIFIED FOOD SOURCE.
A scientific claim refers to a claim that is made by a scientist due to the result that he or she obtained in the research that are conducted. In the excerpt given above, it can be seen that Dr Birdie experience influx of songbirds to her yard as a result of the dried apple and the raising that she added to the birds' food.
As you increase exercise and muscle activity, your heart rates increases. That is one feedback mechanism. Your heart delivers oxygen and nutrients to your muscle and other parts of the body quicker.
I believe the answer is: Different scientists use different data for investigation.
I say that because different scientists have different equipment, ideas, and have different methods. I hope I was right and i hope it helped and i wasn't to late to answer this question.