Answer:
it is because of a mutation in the hemoglobin gene
Answer . There are a couple ways the average person can help with global warming. You can plant trees, (planting four is the equivalent to taking 100,000 car's carbon dioxide off the road for a year!) You can buy energy efficient light bulbs, (produces a lot less carbon dioxide, doesn't get as hot, is brighter and saves you cash!) You can buy an energy efficient car, (some diesel cars run on vegetable oil!) Turn off those lights, (don't forget to unplug them as well, or they will waste the same amount of carbon dioxide as if they were on!). If you have a pool don't heat it in the summer, (let Mother Nature do it for you.)Buy foods from your state or country, (the cars transportation your food won't waste as much carbon dioxide.. These are just a few of the ways you can do your part to stop global warming..
~over hunting has killed a lot of species
~we genetically modify plants and animals to our liking
~we have introduced a lot of invasive species to different places effecting local wildlife
Answer:
Because they might be taking in a higher concentration of the toxin through food or their environment or others could just be older meaning theyve ingested more of the toxin overtime
Explanation: