The blood cells will lyse (burst) because the water is hypotonic to the cells.
By contracting, muscles pull on bones and allow the body to move. ... Each muscle in the pair works against the other to move bones at the joints of the body. The muscle that contracts to cause a joint to bend is called the flexor. The muscle that contracts to cause the joint to straighten is called the extensor
The slow gradual change is called proposed.
it process organisms w/ favoable traits to survive hope this help meh friend :)
