Final answer:
The weight of an organ in an adult male has a bell-shaped distribution with a mean of 300 grams and a standard deviation of 45 grams.
Step-by-step explanation:
This question is about the weight distribution of an organ in an adult male. The given information states that the distribution is bell-shaped, with a mean of 300 grams and a standard deviation of 45 grams. Therefore, the statement is true.