NCEA Level 3 Biology study plan

Build a one-page reference table of plant responses (phototropism, geotropism, thigmotropism, nyctinasty) naming the stimulus, receptor site, hormone or mechanism, and observable response

Explain, in writing, how auxin redistribution produces differential cell elongation in a shoot tip, using at least one labelled diagram you draw yourself

Describe two animal orientation behaviours (taxis and kinesis) and distinguish them with your own worked examples

Interpret a graph of response strength against stimulus intensity and state what the shape implies about receptor sensitivity

Compare endogenous rhythms (circadian, circannual) with exogenous cues, and give one piece of evidence for each in a named organism

Explain how photoperiodism and phytochrome control flowering or dormancy in a named plant species

Describe how a named animal uses environmental cues for navigation or migration, and evaluate one limitation of the evidence

Answer two past-paper style 91603 questions under timed conditions and mark them against the schedule

Draw and label a negative feedback loop for thermoregulation in humans, naming sensor, control centre, effector and response

Explain how osmoregulation is controlled, including the roles of ADH, the hypothalamus and kidney tubules

Compare nervous and hormonal control of blood glucose, naming insulin, glucagon and target tissues

Describe how a named disruption (dehydration, hypothermia or diabetes) overloads one homeostatic system

Define biological species and explain why reproductive isolating mechanisms are central to speciation

Classify pre-zygotic and post-zygotic isolating mechanisms and give a named example of each

Explain allopatric speciation step by step for one named example, showing how selection and isolation interact

Contrast allopatric with sympatric speciation and identify what evidence would distinguish them

Explain how mutation, gene flow, genetic drift and natural selection change allele frequencies, using a worked numerical example

Interpret a phylogenetic tree or allele-frequency data set and state what it does and does not show

Sequence the key hominin trends (bipedalism, encephalisation, dentition, tool use) and state the order in which they appear in the fossil record

Compare two named hominin species on at least three skeletal or cultural features

Evaluate two competing interpretations of a hominin trend, stating the evidence each relies on and its weaknesses

Describe the biological implications of one genetic transfer technique (for example gene therapy, selective breeding or transgenesis) for the organism and the population

Explain the ethical, social and economic implications of that technique for a named group of people

Distinguish the biological implications of genetic transfer from the cultural or ethical ones in a written response

Analyse a named socio-scientific issue by separating the biological science from the values, economics and politics involved

Write a reasoned personal position that acknowledges at least two counter-arguments and responds to them

Design a practical investigation on a biological variable, stating a testable hypothesis, a controlled variable list and a valid sampling method

Process a data set you collect or are given, choosing and justifying an appropriate statistical or graphical technique

Evaluate your own investigation data, discussing sources of error, reliability and validity, and state a conclusion that the data supports

Complete one timed practice paper or question set covering all seven standards under exam conditions

Mark your timed attempt against the assessment schedules and list your three weakest explanatory skills

Revise only those three weak areas using your week 1-7 notes, then re-attempt the relevant questions