Biology

The correct answer is: D.The holes of the semi-permeable membrane were too small to let sugar molecules through.

Explanation:

A semi-permeable membrane selectively allows certain molecules to pass through based on size, polarity, and other characteristics. In this case:

1.Water molecules are small and can pass through the semi-permeable membrane through a process called osmosis.

2.Sugar molecules are typically larger and more complex than water molecules, and thus, the pores or "holes" in the semi-permeable membrane may be too small to allow them to pass through easily.

Here’s why the other options are not correct:

A.Sugar molecules are too heavy: ...