Natural Science. Level 5. Unit 5. Ecosystems

5th LEVEL. UNIT 5. ECOSYSTEMS NEW WORDS ecosystem …ecosistema environment…entorno, medio ambiente interrelate …relacionarse entre sí  sand…arena relationships…relaciones among …entre varios  Terr  Terrestrial estrial …terrestr …terrestre e Land …tierra surrounded …rodeado

Aquatic …acuático Freshwater …agua dulce saltwater …agua salada fauna…fauna ora …ora species …especies poppies…amapolas population …poblaci!n community …comunidad

ECOSYSTEMS An ecosystem consists of all the organisms  living in a place and their enironment " Living things interre!ate each other" #$ample of ecosystem% a desert, with all the living things there &animals and plants', the environment &sand, roc(s and air' ant the relationships among them" "hysica! enironment )t consists of the non#!iing things  &roc(s, water, temperature, humidity, light, etc'  There are are two types of physical physical environments% environments% Terrestria! environments" Land surrounded by air" $%&atic enironments enironments " Freshwater environments &rivers, la(es' or saltwater environments &seas, oceans' • •

Liing things #cosystems have 'a&na &all the animals' and (ora &all the plants'" Living things are grouped into s)ecies &horses, whales, poppies' that can reproduce" A )o)&!ation  is the group of organisms of the same species living in an ecosystem" An comm&nity  is the group of populations living in an ecosystem"

https%**www"youtube"com*watch+v-ue.$/tt0qo

NUTRITION IN ECOSYSTEMS NEW WORDS 1urvive…sobrevivir 2roducers…productores 3onsumers…consumidores obtain …obtener Fo$es …4orros #agles …águilas 1cavengers …carro5eros

6ecomposers…descomponedores dead …muerto vultures…buitres fungi…hongos chains…cadenas mushrooms…hongos, setas, champi5ones

Living things o*tain 'oo+ to s&rie " They can be% "ro+&cers" They ma(e their own food &plants and algae'" Cons&mers " They obtain food from other living things" Types% "rimary cons&mers " They eat producers &herbivores'" 7abbits o eat plants" Secon+ary cons&mers" They eat primary consumers o &carnivores'" Fo$es eat rabbits" Tertiary cons&mers " They eat secondary consumers o &carnivores'" #agles eat fo$es" Scaengers and +ecom)osers" o 1cavengers eat dead animals &vultures'" o 6ecomposers" They are microorganisms and fungi, which decompose dead animals and transform them into minerals for the soil, used by producers &bacteria and mushrooms'" ,oo+ chains Living things eat other living things in ecosystems" ecosystems"  2roducers eat mineral from the soil"  3onsumers eat producers"  1cavengers and decomposers eat and decompose consumers"  6ecomposers transform animals into minerals from the soil" • •

•

https%**www"youtube"com*watch+vpas08F$h9:( https%**www"youtube"com*watch+vttp;

BENEFICIAL AND HARMFUL RELATIONSHIPS RELATIONSHIPS

NEW WORDS bene?cial …bene?cioso harmful …per.udicial relationships…relaciones 0oth …ambos bene?t …bene?cio, bene?ciarse bees …abe.as @utualism…mutualismo 3ommensalism…comensalismo 1tay…quedarse, permanecer the same …lo mismo, igual

remoras …rmoras 2arasitism…parasitismo 2arasite…parásito 1uBer…sufrir eas …pulgas 3ompetition…competencia needs …necesidades squirrels …ardillas dormice…lirones no one…ninguno

6iBerent types of re!ationshi)s between living things in an ecosystem% M&t&a!ism " 0oth species ta(e bene?t &bees and owers' Commensa!ism " Cne species bene?ts and the other stays the same &remoras and shar(s' "arasitism " Cne species bene?ts ¶site'and the other suBers &eas and dogs'" Com)etition " 0oth species have the same needs &squirrels and dormice'" They compete and no one ta(es bene?t" https%**www"youtube"com*watch+vs-Dg)6m6E.> • •

•

•