science

5. composed of specialized cells called muscle fibers
6. The glands and organs that make hormones and release them directly into the blood
7. a complex network of organs, cells and proteins that defends
9. part of the digestive system
11. your body's outer layer
12. to filter blood and create urine as a waste by-product
13. beats in the middle of your body
14. all your bones
15. The tissues, glands, and organs involved in producing offspring

1. includes the epidermis, dermis, hypodermis, associated glands, hair, and nails
2. muscles and joints make up the?
3. a group of organs, vessels and tissues that protect you from infection
4. provides blood supply throughout the body
8. delivers oxygen and nutrients to cells and takes away wastes
10. remove waste products from the blood and produce urine.