AC9S9U01
Year 9
Science
AC9S9U01 | Year 9 Science: Biological sciences
Content Descriptor
Content descriptor compare the role of body systems in regulating and coordinating the body’s response to a stimulus, and describe the operation of a negative feedback mechanism
Strand
Science understanding
Substrand
Biological sciences
This content descriptor sets out learning for Year 9 Science. Use it to plan lessons and assessment with the Australian Curriculum v9.
Elaborations
- • Elaboration exploring the body’s observable responses to external stimuli (such as changes in light or temperature, or presence of danger or pathogens) or internal stimuli (such as dehydration or hunger)
- • Elaboration using models, flow diagrams and virtual simulations to explore and represent the relationships between body systems that are necessary to coordinate a response to stimuli
- • Elaboration comparing the role and function of electrical impulses and hormones in the body’s responses to external stimuli
- • Elaboration modelling how the process of regulation is monitored and adjusted by connections between the receptor, command centre and effector
- • Elaboration examining the effects of a disorder in a feedback system, such as diabetes-induced blindness or hypothermia
- • Elaboration considering how understanding of feedback mechanisms has enabled the development of pharmaceuticals and other products to address issues or enhance performance, such as insulin or electrolytes in sports drinks
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