Zadanie 5d
Explain how continued goat farming could arrest succession and keep the site as open vegetation.
Stability and change
Umiejętności w tym dziale
Umiejętności z tego działu sprawdza 56 zadań wzorowanych na arkuszach IB z lat 2023–2026. Dział pojawia się w 24 z 54 arkuszy w bazie.
Zadania z tego działu: 56 Otwórz w wyszukiwarce z filtrami
Zadanie 8
Carbon chemistry underlies the origin, storage and sustainable production of biological material. (a) Outline environmental conditions on early Earth that favoured diverse carbon compounds. (b) Describe practices that can make agriculture sustainable. (c)…
Zadanie 39
Runoff rich in nitrate enters a small pond and stimulates eutrophication. Which pair of changes is expected during the developing algal bloom and subsequent decay? A. Less algal biomass and lower microbial oxygen demand B. More algal biomass and greater…
Zadanie 40
A persistent pesticide occurs at the following concentrations along a feeding chain. Water contains 0.000004 ppm. Which inference best explains the pattern? A. A fish must eat exactly 4.29 zooplankton in its lifetime B. The pesticide is removed rapidly and…
- Tabela do uzupełnienia
Zadanie 2a
Justify why the otter has a higher DDT concentration than either the heron or the pike.
- Materiał graficzny
Zadanie 2b
Identify which fish would give the lowest DDT intake per equal mass of lipid consumed, and give a reason.
- Materiał graficzny
Zadanie 2d
Discuss how overfishing could affect this wetland and how the sustainability of fishing could be assessed.
- Materiał graficzny
Zadanie 6c
(i) Outline why the EDGE of Existence approach is useful for conservation. (ii) Outline one way rewilding can restore an ecosystem process.
Zadanie 38
Which action is consistent with rewilding a damaged river catchment? A. Removing all native predators B. Reintroducing a native keystone species to restore ecological processes C. Maintaining every habitat as a small isolated enclosure D. Replacing native…
Zadanie 39
A newly exposed lava surface is followed as a community develops over many years. Which general trend would support primary succession? A. Progressive removal of all detritivores B. A steady decline in the number of feeding relationships C. Immediate…