Answer:
The esophagus is a long tube that connects the mouth to the stomach
The rotating movement along the earth's axis
<u>ANSWER:</u>
The muscles and joints allow the hands to perform their function of holding and grasping a wide variety of things.
<u>EXPLANATION:</u>
- The structure of hands is "very delicate and complex". The tendons, nerve fibres, tissues and thin muscles are located right under the skin.
- The bones of the hand including the 4 carpal bones, 5 metacarpal and 14 finger bones are all connected by joints and ligaments and these allow the hand to grasp things.
- The wrist is made of "two parts of a joint" that allow the extension and stretching of hands.
A small change in a persons DNA can cause any number of mutations that may be completely harmless or fatal depending on where the mutation (change) occurs in ones DNA.
