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.

The human genome project is devoted to mapping the general dna sequence of our species. this could lead to the development of new medicines, as well as the possibility of using gene therapy to treat certain diseases. however, there are some ethical issues surrounding the mapping of individual genomes. one concern is a) that your genes may change over time, making the project useless. b) that insurance companies could discriminate based on genetic make-up. c) that since this has never been done before, we should probably not do it now. d) that sequencing our individual genomes is so expensive, it is a counter-productive strategy.

Temperatures in ponds and lakes vary by season. select the best answer from the choices provided t f

The main ingredient of magma is a pahoehoe. b silca c dissolved gases d obsidian