the three components of an ecosystem are:
- living things
- ecosystem
- relationship
FALSE
ecosystem --> physical environment
An ecosystem is a ____________ of living things that live together in a particular place.
COMMUNITY
Which type of ecosystem is it?
FOREST
Human's head and lice (piojos)
PARASITISM
Plants are producers.
TRUE
The secondary consumer eats the ________ consumer.
PRIMARY
Where can we find cactus, sand and camels?

In the desert.
A shark and a remora.
COMMENSALISM
Primary consumers are hervibores.
TRUE
The three components of an ecosystem are: livings things, ____________ and _____________.
PHYSICAL ENVIRONMENT
RELATIONSHIPS
In which ecosystem can we find a polar bear?
Tundra
Two lions fighting for a prey.
COMPETITION
An ecosystem is a community of animals that live together in a particular place.
FALSE.
animals --> living things
MUTUALISM: both species ________________.
BENEFITS
Which ecosystem is it?
Marine
A bird eating the remains of food of a crocodrile's teeth.
MUTUALISM
Secondary consumers are hervibores.
FALSE
hervibores --> carnivores
PARASITISM: one specie benefits and the other ____________________________.
is affected / is harmed
Name the six types of ecosystems.
TUNDRA, GRASSLAND, MARINE, FOREST, FRESHWATER, DESERT.
Each bee has a job.