I'm not really sure, but I guess skin colour isn't passed genetically?
Answer:
B: 100
Explanation:
Carrying capacity is the point where a population stops growing and stays stable.
Exchange of nutrients occurs in the digestive system. Exchange of oxygen occurs in lungs
The first colorimeter is precise, but it is not accurate. It seems to have a zero error of -5.
We can conclude its precision because the readings are closely grouped, but its lack of accuracy is due to its variation from the actual value. Moreover, the variation is consistently of 5 points lower than the actual value, so its zero error may be -5.
The second colorimeter may be referred to as being accurate.