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Achievement Standard 91155 (Biology 2.3) Internal Assessment 3 credits
You will have 3 periods to write your report during class time.
This an open book assessment, however you can only bring in your portfolio of learning, containing milestones #1, #2, #3 and #4.
To get a good grade, make sure you complete the tasks set in each section, follow the number of lesson suggestions above, and if you miss a lesson ensure you catch up for prep. Submit all milestones on time, get feedback from me, listen to that feedback, and improve your work. Also, please remember that it is never too late to ask for help during class or ask for a lunch time tutoring session.
How do you get Achieved?
Name 3 taxonomic groups (mammal, fish, insect), and give one animal example for each (human, snapper, locust).
For each taxonomic group, describe their ecological niche by stating their habitat, where they get their oxygen from (air or water), and what percentage of oxygen is available (20% oxygen available in air; 1% oxygen available in water). You should also explain their energy demands (e.g.: do they migrate, minimse infection, catch prey or escape predators etc.)
For ALL THREE taxonomic groups, describe how TWO adaptations help with gas exchange.
How do you get Merit?
All of the Achieved criteria but written well.
For TWO taxonomic groups, explain in-depth how TWO adaptations help maximise gas exchange in their niche. This involves linking WHY the adaptation is needed to survive in that niche, and HOW the adaptation helps maximise gas exchange.
How do you get Excellence?
All of Achieved and Merit criteria, written well.
For ALL THREE taxonomic groups, you must comprehensively compare the adaptations the tidal system, gill system, and tracheal system have to maximise the efficiency of gas exchange. This means you must compare how different systems achieve a large SA : V ratio, a moist respiratory surface, a thin respiratory surface, and a large concentration gradient.
For ALL THREE taxonomic groups, you must comprehensively discuss the limitations of each gas exchange system.
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