Science - Combined - 0653 CIE

Conservation

Gbogbo ọrọ náà

Once a species is gone, it is gone forever, and its genes go with it. Conservation is the active effort to stop that happening: to manage forests and fish so they renew themselves, to protect species in danger, and to keep ecosystems working. It is part science, part global cooperation, and increasingly urgent.

In this lesson you will define a sustainable resource, explain why species become endangered or extinct, and describe how we conserve them, from protected areas and captive breeding to seed banks. You will also meet the [Supplement] tools of modern conservation, including fishing quotas, AI and IVF, and the genetic danger that small populations face.

Ebumnobi

[Core] Outline why organisms become endangered or extinct, including: climate change, habitat destruction, hunting, overharvesting, pollution and introduced species
[Supplement] Describe how endangered species can be conserved, limited to: (a) monitoring and protecting species and habitats (b) education (c) captive breeding programmes (d) seed banks

Akọmọ Ojú-ẹkọ

Biodiversity is a resource we cannot remake. It gives us food, medicines, fuel and the genes to breed better crops, and it keeps ecosystems, including nutrient cycles, functioning. Conservation questions ask you to explain causes of extinction, evaluate methods, and (for [Supplement]) justify why we bother. The reasoning is exactly what the exam rewards.

Ọ dị na ngwa Green Bridge

Budata ngwa Green Bridge CBT na ekwentị maọbụ kọmputa gị iji nweta akwụkwọ ndụmọdụ zuru oke, ajụjụ mmụta, na ndị ọzọ.

Akwụkwọ ndụmọdụ zuru oke nwere eserese

Onye inyeaka mmụta AI

Mụọ n'ụzọ na-enweghị ịntaneti, oge ọbụla, ebe ọbụla

Budata ngwa ekwentị Budata ngwa kọmputa

Ọ dị na Android, Windows, macOS, na Linux

Ayẹwo Ẹkọ

Ekele diri gi maka imecha ihe karịrị na Conservation. Ugbu a na ị na-enyochakwa isi echiche na echiche ndị dị mkpa, ọ bụ oge iji nwalee ihe ị ma. Ngwa a na-enye ụdị ajụjụ ọmụmụ dị iche iche emebere iji kwado nghọta gị wee nyere gị aka ịmata otú ị ghọtara ihe ndị a kụziri.

Ị ga-ahụ ngwakọta nke ụdị ajụjụ dị iche iche, gụnyere ajụjụ chọrọ ịhọrọ otu n’ime ọtụtụ azịza, ajụjụ chọrọ mkpirisi azịza, na ajụjụ ede ede. A na-arụpụta ajụjụ ọ bụla nke ọma iji nwalee akụkụ dị iche iche nke ihe ọmụma gị na nkà nke ịtụgharị uche.

Jiri akụkụ a nke nyocha ka ohere iji kụziere ihe ị matara banyere isiokwu ahụ ma chọpụta ebe ọ bụla ị nwere ike ịchọ ọmụmụ ihe ọzọ. Ekwela ka nsogbu ọ bụla ị na-eche ihu mee ka ị daa mba; kama, lee ha anya dị ka ohere maka ịzụlite onwe gị na imeziwanye.

A sustainable resource is one that is: A. very cheap to produce B. produced as rapidly as it is removed, so it does not run out C. never used by humans D. only found in forests Answer: B
Which is NOT a cause of species becoming endangered? A. habitat destruction B. captive breeding C. hunting D. pollution Answer: B
Seed banks help conservation by: A. killing pests B. storing seeds as a gene bank against extinction C. increasing pollution D. clearing forests Answer: B
A closed season conserves fish stocks by: A. allowing fish to spawn and mature before being caught B. using smaller nets C. removing all predators D. adding fertiliser Answer: A
A small population is at greater risk of extinction because it has: A. too many predators B. reduced genetic variation C. too much food D. more habitats Answer: B