Final answer:
To compare the mass of the tomato (100 grams) to the ant's mass (4 milligrams), we convert 4 mg to grams (0.004 grams), resulting in the tomato being 99.996 grams heavier than the ant.
Step-by-step explanation:
The mass of the tomato is given as 100 grams, and the mass of the ant is stated as 4.0 x 10^3 grams. This expression seems to be incorrect; likely, it should read 4.0 x 10^-3 grams, which equals 4 milligrams (mg) since the original expression would equate to 4000 grams, an unrealistically high mass for an ant. To compare the mass of the tomato to that of the ant, we need to convert the mass of the ant to grams. Since there are 1000 mg in 1 gram, the mass of the ant is 0.004 grams. Thus, the mass of the tomato is 100 grams - 0.004 grams = 99.996 grams greater than the mass of the ant.