Explain why the elbow joint of a cow and the elbow joint of a human have similar

Both joints have an ulna and a radius connected to them. Both joints are hinge joints, however humans have a complex hinge joint (allowing us to move it in more directions) while cows have only a hinge joint (can only move in one direction).

to stay where they were until m sent for

two jet streams that directly affect the formation of weather in the continental part are a polar jet and a subtropical jet. they are responsible for the transportation of weather systems, which directly affect people. the polar front is the boundary between cold air from the north pole and warmer equatorial air. both the polar jet and the subtropical jet blow from the west to the east, and follow the boundary between cold and warm air.

the strongest jet streams are polar jets, while subtropical jets are somewhat weaker.

the right answer is c. the polar jet stream is generaly stronger than the subtropical jet stream.