Zadanie 1a
Calculate the percentage of Compact R dogs recorded as cases.
- Materiał graficzny
Biology SL Paper 2, May 2026, TZ1
Zadania wzorowane na pytaniach z tego arkusza: te same umiejętności, format i punktacja, inne dane i kontekst. Treści arkusza IB nie publikujemy.
W bazie 20 zadań z tego arkusza, razem 66 punktów, każde z kluczem i schematem punktowania. Najwięcej zadań sprawdza: Biological calculations, statistics and graphs (5), Evaluating biological evidence and methods (3), Directional communication at chemical synapses (2).
Rozwiąż arkuszCały arkusz po kolei. Wynik na końcu.
Dodaj cały arkusz do zestawuZadanie 1b
Distinguish Standard Q from Compact Q in prevalence and median onset age.
- Materiał graficzny
Zadanie 1c
Deduce, with a reason, whether standard-sized or compact dogs tend to develop the disorder younger in this dataset.
- Materiał graficzny
Zadanie 1d
Identify the category with the greatest estimated mean risk in the graph.
- Materiał graficzny
Zadanie 1e
Calculate the difference in estimated mean risk between intact females and females neutered early.
- Materiał graficzny
Zadanie 1f
Compare and contrast the model risks for males and females.
- Materiał graficzny
Zadanie 1g
Using both datasets, discuss the combination of line, sex and neutering category associated with the lowest model risk.
- Materiał graficzny
Zadanie 2a
Draw and label the molecular components of one RNA nucleotide, showing how they connect.
Zadanie 2b
Describe why polypeptides can show an enormous diversity of sequences.
Zadanie 2c
Outline how mRNA contributes to translation in a eukaryotic cell.
Zadanie 3a
Define a stem cell.
Zadanie 3b
Discuss where stem cells occur in an adult human and what they do.
Zadanie 4a
Draw an arrow on the model to show the direction in which the signal is transmitted.
- Materiał graficzny
Zadanie 4b
Identify the type of molecule marked Z.
- Materiał graficzny
Zadanie 4c
Explain how calcium contributes to transmission at this junction.
- Materiał graficzny
Zadanie 5a
A jellyfish is supported within seawater rather than standing on a solid surface. State the physical property of water responsible for this support.
Zadanie 5b
Discarded large plastic fragments accumulate in a coastal ecosystem. Outline consequences for marine organisms.
Zadanie 5c
Explain how a sustained increase in seawater temperature can affect reef-building corals.
Zadanie 6
Living systems display diversity from molecules to communities. (a) Outline how the structures of starch and cellulose support their functions. (b) Describe adaptations through which forest plants obtain light. (c) Explain how natural selection brings about…
Zadanie 7
An unaffected couple has a child with phenylketonuria, an autosomal recessive disorder. Use P for the functional allele and p for the recessive allele. Other parts concern respiratory defence and gas exchange. (a) Describe how the disorder can be inherited in…