Question

energy pyramids and trophic levels
food chains can be arranged in energy ----------. these have different levels called ----------
levels. most food chains are limited to 4 or 5 trophic levels. this is because the ---- of energy
between trophic levels is ------------. in fact, around only ---% of energy stored as
-------- in one trophic level ends up as biomass in the ---- trophic level.
decomposers

Explanation:

To solve this fill - in - the - blank problem about energy pyramids and trophic levels, we use our knowledge of ecology (a subfield of Biology, which is part of Natural Science):

Step 1: First blank

Food chains can be arranged in energy pyramids. Energy pyramids are graphical representations that show the flow of energy through different trophic levels in an ecosystem.

Step 2: Second blank

These (energy pyramids) have different levels called trophic levels. Trophic levels represent the position of an organism in a food chain, such as producers, primary consumers, secondary consumers, etc.

Step 3: Third and Fourth blanks

Most food chains are limited to 4 or 5 trophic levels. This is because the transfer of energy between trophic levels is inefficient. When energy is transferred from one trophic level to the next (for example, from producers to primary consumers), a large amount of energy is lost (through processes like respiration, heat loss, and waste production).

Step 4: Fifth, Sixth, and Seventh blanks

In fact, around only 10% of energy stored as biomass in one trophic level ends up as biomass in the next trophic level. This is known as the 10% rule in ecological energy transfer.

Answer:

1. pyramids
2. trophic
3. transfer; inefficient
4. 10; biomass; next