Why is it not possible for insects to grow as large as cars?
- Can't shed exoseketon to grow larger
- Can't suply oxygen to all parts of the body
- Wouldn't be able to support mass of large insect
Where do we get our source of mtter and energy?
Flexible cords of connecting tissue, attach bone to bone
Flexible cords of connective tissue, attach muscle to bone
Muscles for movement
The muscles of the esophagus, intestines, that move without you having to consciously do it
The muscle of the heart, always contracting
Describe the role of the protiens atin and myosin in the movement of muscles.
They cause the muscles to shorten
Fluid in the skeleton
What are the functions of the skeletal system?
Provide support, protect and cause movement
What are the functions of the muscular system?