Explanation:
heredity determines some of the physical aspects such as the color of the eyes,the hair ,the skin etc
it also influences height and diseases and also personality
heredity also influences behavior since eg a son may have the same qualities such as braveness from his father
genes tend to change according to the environmental conditions eg when the early man started to light fire the fur from his skin shed hence that is a genetic mutation which is a change in genes caused by environmental chnges
power,status, and wealth between countries.
Depends on how many grams of the sample exist.
Think of half life as the amount of time it takes to split the item in half. With that half life, divide starting the grams by 2 (for the first 60.5 seconds). Because the question is asking for 121 seconds, divide the grams you just divided by 2 again. That should get you your answer.
Hope this helps!
increased standard of living