There are six levels of organization in the body - what are they?
-:- 1) chemical
2) cellular
3) tissue
4) organ structure
5) organ system
6) organism
The necessary life function that protects our internal environment from our external
environment is provided by what system?
-:- The int...
✓ -:- ATP provides cells with the energy necessary to carry out cellular activities and
functions.
Epithelial cells perform what types of functions?
✓ -:- Secretion and absorption
What are the four basic tissue types?
✓ -:- 1) epithelial
2) muscle
3) connective
4) nervous
Toward or at the body surface is known as what direction?
3|Page | Grade A+| 2024/2025
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