This diagram shows the structure of the bone and muscle in a human arm. -muscle
tendon
bone
How does the structure of the muscle help the arm move?
O A. The long muscle fibers transmit signals to the bones to make them move.
B. The parallel muscle fibers contract and pull the bones to produce movement.
C. The large surface areas of the muscle fibers absorb oxygen to help them move.
O D. The tube-shaped muscle fibers transport oxygen and food needed to move the bones.

What are charcteristics of lithosphere?

Which of the following is not a food produced in rainforests? a) coffee b) cocoa c) avocados d) wheat

Hydrilla (hydrilla verticillata) is an invasive aquatic plant and one of the most serious aquatic pests in florida. hydrilla has already been introduced to hundreds of bodies of water throughout florida, hydrilla is difficult to control because it grows rapidly and survives in many different water depths and conditions. hydrilla • describe how hydrilla affects native plant and animal species. include both a biotic and an abiotic limiting factor. • suggest one biotic and one abiotic recommendation that could slow the spread of hydrilla