The document discusses food chains and webs, describing producers, consumers, and decomposers. It mentions the extinction of the golden toad in Costa Rica in 1989 and a mass extinction event 65 million years ago. While natural causes can lead to extinction, humans are responsible for recent biodiversity loss. It notes that the Iberian lynx and imperial eagle are endangered species and describes two national parks in Spain that protect Mediterranean forests and marshes.

1. ANDREA FERNANDEZ PEÑALVER
5º

2. .
THE SUN
PRODUCER
PRIMARY
CONSUMER
SECONDARY
CONSUMER
TERTIARY
CONSUMER
DECOMPOSER

3.  MOST LIVING THING ARE PART OF MORE THAN ONE FOOD CHAIN.
 THE CONNECTED FOOD CHAINS MAKE UP A FOOD WEB

4. .
THE GOLDEN TOAS WAS ONCE A
COMMON SPECIES IN COSTA RICA
EXTINCT IN 1989
 ABAUT 65 MILLION YEARS AGO
A MASS ESTINCION OCCURRED
CAUSING THE LOSS NEARLY
50% OF THE WORLD’S SPECIES.
 .

5.  THERE ARE MANY NATURAL CAUSES OF EXTINCION,HOWEVER
HUMMANS ARE RESPONSIBLE OF RECENT OF BIODIVERSITY IN THE
WORLD.

6.  THE IBERICAN LYNX IS THE MOST ENDANGERED
CAT SPECIES IN THE WORLD.

7.  THE IBERIAN IMPERIAL EAGLE IS AN
ENDANGERED SPECIES LIVING.

8.  MONTFRANGUE NATIONAL PARK IN CACERES
IS AN OUTSTANDING EXAMPLE OF
MEDITERRANEAN FOREST

9.  DOÑANA NATIONAL PARK IS AN AREA OF
MARSHES AND SAND DUNES IN SOUTHERN
SPAIN.