Question

Flea

Bird
Caterpillar
Oaktree
А
Look at the ecological pyramid above. What can you tell from this ecological pyramid?
The trophic level of the birds have a lower blomass than the trophic level of the caterpillars.
Fleas belong to the trophic level of primary producers.
The trophic level of the oak trees has the lowest biomass,
All four trophic levels contain consumers.
B
С
D
C2020
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Answer 1

all of them are.

Step-by-step explanation:

because all of them are produces for example the life cycle of the Caterpillar First it is a Caterpillar then he is tournd into a pupa then he is a bauterfly then it reproduces and reproduces