Worksheet identifying organ systems based on functions and organs.

Problem Analysis:

The task involves identifying the organ systems to which specific functions or organs belong. The provided options for organ systems are:

- A. Cardiovascular
- B. Digestive
- C. Endocrine
- D. Integumentary
- E. Lymphatic/Immune
- F. Muscular
- G. Nervous
- H. Reproductive
- I. Respiratory
- J. Skeletal
- K. Urinary

Each question describes a function or characteristic, and the goal is to match it with the correct organ system.

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Solution Explanation:

#### 1. Rids the body of nitrogen-containing wastes
- Nitrogen-containing wastes (e.g., urea) are primarily removed by the kidneys, which are part of the urinary system.
- Answer: K. Urinary

#### 2. Is affected by the removal of the thyroid gland
- The thyroid gland is part of the endocrine system, which produces hormones that regulate metabolism and other bodily functions.
- Answer: C. Endocrine

#### 3. Provides support and levers on which the muscular system can act
- The skeletal system provides structural support and serves as attachment points for muscles, allowing movement.
- Answer: J. Skeletal

#### 4. Includes the heart
- The heart is the central organ of the cardiovascular system, responsible for pumping blood throughout the body.
- Answer: A. Cardiovascular

#### 5. Protects underlying organs from drying out and mechanical damage
- The skin, which is part of the integumentary system, protects internal organs from dehydration and physical injury.
- Answer: D. Integumentary

#### 6. Protects the body; destroys bacteria and tumor cells
- The lymphatic/immune system defends the body against pathogens and removes waste products.
- Answer: E. Lymphatic/Immune

#### 7. Breaks down foodstuffs into small particles that can be absorbed
- The digestive system breaks down food into nutrients that can be absorbed by the body.
- Answer: B. Digestive

#### 8. Removes carbon dioxide from the blood
- The respiratory system facilitates gas exchange, removing carbon dioxide and bringing in oxygen.
- Answer: I. Respiratory

#### 9. Delivers oxygen and nutrients to the body tissues
- The cardiovascular system transports oxygen and nutrients via the bloodstream.
- Answer: A. Cardiovascular

#### 10. Moves the limbs; allows facial expression
- The muscular system is responsible for voluntary and involuntary movements, including limb movement and facial expressions.
- Answer: F. Muscular

#### 11. Conserves body water or eliminates excesses
- The urinary system regulates water balance by filtering blood and excreting urine.
- Answer: K. Urinary

#### 12. Provides for conception and childbearing
- The reproductive system is responsible for producing gametes and facilitating reproduction.
- Answer: H. Reproductive

#### 13. Controls the body with chemicals called hormones
- The endocrine system produces hormones that regulate various physiological processes.
- Answer: C. Endocrine

#### 14. Is damaged when you cut your finger or get a severe sunburn
- The skin, part of the integumentary system, can be damaged by cuts or sunburn.
- Answer: D. Integumentary

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Final Answers:

1. K
2. C
3. J
4. A
5. D
6. E
7. B
8. I
9. A
10. F
11. K
12. H
13. C
14. D

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Boxed Final Answer:

\[
\boxed{K, C, J, A, D, E, B, I, A, F, K, H, C, D}
\]