Answer:
The boldface numbers on this beam are grams and the tick marks between the boldface numbers indicate tenths of grams. To find the mass of the object on the pan, simple add the numbers from the three beams. As with a ruler, it is possible to read the front scale to the nearest half tick mark.
A I think but can you get a better picture of the questions
Answer:the fitness of an organism is the ability to survive and reproduce
Explanation: