Across 2. Filters and eliminates liquid wastes; regulates water balance. The answer here is Urinary System [1] 3. Enables gas exchange with the blood. This refers to the Respiratory System [1]. 5. Enables movement, maintains posture and can store energy. This describes the Muscular System [1]. 9. Senses external environment and activates other parts of the body. communicates with and The answer is the Nervous System [1]. 10. Produces gametes and supports development. This describes the Reproductive System [1]. Down 1. Allows ingestion and breaks down food so that nutrients can be absorbed. This is the Digestive System [1]. 4. Provides mechanical support; stores minerals and produces red blood cells. This refers to the Skeletal System [1]. 6. Protects the body's internal environment and stores fat. This is the Integumentary System [1]. 7. Enables the transport of nutrients, gasses and wastes to and from cells. This function belongs to the Circulatory System [1]. 8. Secretes hormones into the bloodstream for regulation of cellular activities. This is the Endocrine System [1]. Learning Task 2: The second part of the learning task likely involves a list of words that students need to use to identify specific parts of the skeleton. Without the provided word list, it's impossible to complete this task.