5. About how much energy is transferred from a primary producer to a primary consumer in a trophic pyramid? __

## Step 1<br />In a trophic pyramid, energy is transferred from one level to the next. The primary producers, which are typically plants, are at the bottom of the pyramid. They capture energy from the sun through photosynthesis.<br /><br />## Step 2<br />Primary consumers, which are herbivores, eat the primary producers. This means that they receive the energy that the primary producers have captured from the sun.<br /><br />## Step 3<br />However, not all of the energy captured by the primary producers is transferred to the primary consumers. This is because some of the energy is lost at each level of the pyramid due to various factors such as heat loss, waste, and inefficiencies in the energy transfer process.<br /><br />## Step 4<br />On average, only about 10% of the energy from the primary producers is transferred to the primary consumers. This is known as the 10% rule in ecology.