The knee flexors all have skeletal attachments on the .

The correct answer is TIbial tuberosity (on the tibia)

Explanation:

The muscle flexors have all the skeletal muscle present in it such as quads. These are four in number and extended and insert in the tibial tuberosity that helps in the move or action of the knees joints and called knee flexors.

As all the quad muscles insert ultimately to the tibial tuberosity with the patellar ligament.

Thus, the correct answer is tibial tuberosity.

prokaryotic cells do not have a nucleus in which the dna is stored in, it floats freely inside the cell.

eukaryote cells do have a nucleus in which the dna is stored in.

materials water oxygen those are the things i can think of in this moment.