G10

The scientist who first gave the name Ecology:

• Darwin

• Carlos Linnaeus

• Ernest Heckel

A group of giraffe , elephants and grasses :

• Organism

• Population

• Community

• Ecosystem

All are true regarding beavers except

• They are keystone species

• They create new ecosystem

• They change flowing streams into ponds and still water wetlands

• They belong to reptiles

Which one is a producer ?

• Algae

• Grasses

• Cyanobacteria

• All of the above

The process by which Producers make their own food by using energy found in minerals

• Photosynthesis

• Chemosynthesis

Autotrophs are

• Producers

• Consumers

The reactants of photosynthesis are

• Carbon dioxide + water + sunlight energy

• Oxygen + glucose

• Sulfuric acid

The products of photosynthesis

• Oxygen +glucose

• Carbon dioxide + water + sunlight energy

• Sulfuric acid

wind and air pressure are

• Biotic factors

• Abiotic factors

Gray wolf is dependent on the sun and producers

• True

• False