Identify the bone that articulates with the distal end of the femur.

The correct answer is - Tibia.

Explanation:

The distal end is the position that is far from its point of origin. Distal is the site that is farthest to the center of the body. The opposite of the distal is proximal which means the site is near to the center of the body.

The distal end of the femur is articulate with the bone known as tibia which is form knee joint with kneecap and helps in distributing the body weight to the foot. The head of the femur articulates with acetabulum forms hip joint.

Thus, the correct answer is - the tibia.

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not sure if this is what you'r looking for prokaryotes have organelles hope this out at least.