If there are Senders who are sending messages on a queue. And these messages are not yet received by the consumers. They are still lying in the server. But before the consumers could receive the message the server went down. Since they are persistent messages, they are saved. But when secondary comes up how will the secondary server will get the message because it’s a different machine. How will it get the messages which are with the Primary server?

In the short range what will happen to the levels above and below a population of secondary consumers of a numeric pyramid if a large number of individuals from this population dies?

What are primary consumers? Can food chain present quaternary consumers without having secondary or tertiary consumers? Can a tertiary consumer of one chain be a primary or secondary consumer of another chain?

What are primary consumers? Can a tertiary consumer of one chain be a primary or secondary consumer of another chain?

What are primary consumers? Can food chain present quaternary consumers without having secondary or tertiary consumers?

Can food chain present quaternary consumers without having secondary or tertiary consumers? Can a tertiary consumer of one chain be a primary or secondary consumer of another chain?

Can food chain present quaternary consumers without having secondary or tertiary consumers?

Can a tertiary consumer of one chain be a primary or secondary consumer of another chain?