Pyramids Flashcards
how do pyramids of number work?
The number of organisms at each step of a food chain usually gets smaller:
(50) banana →( 5) monkey → (1 )tiger
what do we use to represent the number in each level to make a pyramid shape.
We use boxes to represent the number in each level to make a pyramid shape.
why does the number of organisms get smaller
This is because not all energy that is being passed along the food chain makes it to the next level. Some of it is used in living and some is trapped in the undigested parts when eaten.
why might you not have a pyiramid shape
Chains with large producers or small consumers might not make a pyramid shape
(1) rose bush →(1000) aphids → (1) bluetit
biomass
BIOMASS is a word used to describe the mass of living material in an area
will a pyramid or biomass form a triangle shape
The biomass of each step will still form a pyramid as the mass of one rose bush is bigger than all the aphids.
07 producers and photosynthesis