Organisms and their environment | Baamboozle - Baamboozle

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A _______ is an organism that gets its energy from dead or waste organic.

decomposer

Identify the nutrient cycle represented on the picture and name at least 4 of its processes.

Carbon cycle. Processes:Photosynthesis, Decay, Respiration, Fossilisation, Combustion.

A _____ __ ______ has levels which represent the dry weight of species in a food chain.

pyramid of biomass

How is the relation between the BIRTH RATE and DEATH RATE when a population increases in size?

Birth rate > death rate

Name the 2 processes that ADD nitrates to the soil

1. Nitrifying bacteria 2. Nitrogen-fixing bacteria

In a 1._____ _ ______, we represent the energy at each trophic level. The producers at the bottom, have the _____ amount of enery.

1. pyramid of energy / 2. greatest, largest

Define the term ECOSYSTEM

A biological system that contains a COMMUNITY of organisms together with non-living parts of the envirnment, interacting together.

Name the 3 processes that REMOVE nitrates from the soil.

1. Uptake by plants, 2. Leaching, 3. Denitrifying bacteria

Which factors limit the population growth?

Predation, competition for resources, famine, wars,diseases ...

Which conditions favour the population growth?

Food supply, resources, health, education...

Identify the cycle of the picture and name its 4 main processes.

Water cycle. Processes: Evaporation, Condensation, Precipitation, Transpiration.

A food chain shows the transfer of 1._______ from one organism to the next, beginning with a 2._________, which obtains its energy from the 3. __________.

1. energy / 2.producer / 3. sun

Define the term COMMUNITY

A group of different populations of different species in an ecosystem / Populations of different species

A _____ __ ______ has levels which represent the number of each species in a food chain.

pyramid of numbers

Define the term POPULATION

A group of organisms of one species, living and interacting in the same area at the same time.