Which organism receives the least amount of energy from producers? Quaternary Consumers
Secondary Consumers
Primary Consumers
Tertiary Consumers

The right answer should be Quaternary Consumers. The top of the chain gets the least amount of energy from producers.

Three reasons of the deaths of native americans: new illnesses that their immune systems couldn't cope with. genocides so the settlers could have the good land.starvation from lack of rations and poor infertile land on resevations