Answer: The answer is A
Explanation: The acetabulum is a concave area of the pelvis that forms a socket into which the femoral head fits. Together they form the hip joint.
Answer:
Us humans discovered technology to change the way of life at its best, now the technology at every second is changing our's lives. Over the years, technology has successfully attempted to enter our body and change the way of thinking, and the target is human blood and emotions.
Explanation:
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The bald eagle and the black bear are tetrapods, which means that they both have four limbs along with the digits. This shows that they both are the descendants of the four-limbed ancestors. However, the limbs of the bear and the bald eagle have different functions. The forelimbs of both these organisms serves different purpose. Hence, their limbs are homologous organs. The homologous organs are those which have the same ancestry but the functions are different.
The answer is; D
Solar cells usually convert solar energy into electricity which could later be reserved. The efficiency of solar cells is still low, compared to other sources, with a conversion rate of 15% - 22%. This reduces the attractiveness of solar cells as a competitive source of energy. This also makes this form of energy expensive due to its inefficiency.