What accounts for more than 60% of the total bran weight?

I looked in my book and it said one part accounted for 85% and then another part said 40%. I think it's the cerebral hemispheres, but I don't know for sure.

The Cerebral Cortex

The cerebrum or cerebral hemispheres is correct. Technically, the cortex is only the outer portion of the cerebrum, the gray matter, consisting mostly of cell bodies of neurons.

I hope this helps a little more. Thanks for asking.

To determine what accounts for more than 60% of the total bran weight, we need to analyze the information you have provided. According to your book, one part accounts for 85% and another part accounts for 40%. If we add these two percentages together, we get 125%, which indicates that the total bran weight is being double-counted.

To find the individual percentages for each part, we need to adjust them proportionally so that they add up to 100%. We can do this by dividing each percentage by the total of 125% and then multiplying by 100.

Let's calculate the adjusted percentages:

Part 1 = (85 / 125) * 100 ≈ 68%
Part 2 = (40 / 125) * 100 ≈ 32%

From the adjusted percentages, we can see that Part 1 accounts for 68% of the total bran weight, and Part 2 accounts for 32%.

Based on your question, if more than 60% of the total bran weight is accounted for, then the answer is Part 1, which accounts for 68% of the total bran weight. Therefore, the cerebral hemispheres account for more than 60% of the total bran weight.