Examine the picture below. Which TWO actions must occur in order for the man in the picture to lift the weight? Biceps contract, triceps relaxes to raise the lower arm

Biceps relaxes, triceps contracts to lower the arm

Triceps contracts, biceps relaxes to raise the lower arm.

Triceps relaxes, biceps contracts to lower the arm.

Biceps relaxes, triceps contracts to raise the lower arm.

The diagram below shows the layers of a rock having a trilobite: a rock column labeled rock is shown. the column has three layers. the bottommost layer of the rock has one shaded rhomboid shape, the middle layer has a rhombus with a diagonal along with two identical organisms marked as, trilobite, in the key, the top layer has two semicircles. a key is shown on the right side of the diagram. the shaded rhombus is marked as a, the rhombus with the diagonal is marked as b, the semicircle is marked as c which statement about the rock fossils is true?