Zadanie 4c
Explain the change in spot number in ponds containing no predators.
- Materiał graficzny
Natural selection
Umiejętności w tym dziale
Umiejętności z tego działu sprawdzają 42 zadania wzorowane na arkuszach IB z lat 2022–2026. Dział pojawia się w 35 z 57 arkuszy w bazie.
Zadania z tego działu: 42 Otwórz w wyszukiwarce z filtrami
Zadanie 4d
Justify the conclusion that predator treatment affected the guppy population’s spotting pattern.
- Materiał graficzny
Zadanie 5c
Explain how competition within a species contributes to natural selection.
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 29
Which conditions can contribute to natural selection in a population? I. A habitat change that alters relative survival II. Inherited differences in a relevant trait III. Exactly equal reproductive success for every genotype in every generation Choose the…
Zadanie 2a
A population of ground beetles varies genetically. Identify one process producing genetic variation.
Zadanie 2b
Repeated drought changes conditions in the beetles’ habitat. Explain how environmental change can alter natural selection.
Zadanie 29
Why are Endler’s controlled studies of guppy colour patterns useful evidence for natural selection? A. They show that changing predation pressure can alter which inherited male colour patterns become common B. They show that every guppy acquires the colour it…
Zadanie 29
Which statement correctly distinguishes two sources of heritable variation? A. Mutation can generate new alleles, whereas sexual reproduction reshuffles alleles into new combinations B. Fertilisation prevents offspring from differing genetically C. Meiosis…
Zadanie 6
Nectar-feeding insects depend on flowering plants and can influence their evolution. (a) Outline links between the properties of glucose and its uses. (b) List human activities that threaten insect pollinators. (c) Explain how natural selection can produce…