Organs or organ systems are directly below the hierarchical organization of life. For an organism to act or function properly organ systems are needed to exist. The following are examples of organ systems that are needed by an organism:
1. Nervous System
2. Digestive System
3. Reproductive System
4. Respiratory System
5. Muscular System
6. Skeletal System
7. Endocrine System
8. Immune System
9. Excretory System
10. Circulatory System
11. Integumentary System
Answer:
The six essential nutrients include carbohydrates, protein, fat, vitamins, minerals and water.
Explanation:
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Answer:
Without sparks and flames, and non-flammable equipment.
Explanation:
Cleaning flammable equipment isn't a good idea, since it could catch on fire.
This chemical needs to be kept away from anything that can ignite it, such as sparks or flames.
