In insurance, an offer is usually made wheN

the insurance application has been submitted.

Explanation:

Insurance is a contract which is typically represented by a policy, whereby an individual will receive financial protection in case there are losses against the thing that was insured.

Since the insurance is a contract, an offer can be made when there has been an application for the insurance which would have been submitted.

ans.

heterothermic organisms include those organisms that can switch between homeothermic (having body temperature higher than environment) and poikilothermic (having variation in internal body temperature) strategies.

some migratory birds show heterothermy as they decrease their metabolic rate during cold nights to keep their body temperature low. drop in metabolic rate allows increase in production efficiency of birds that reduces the internal body temperature to make it equal to external cold temperature during cold nights.

thus, the correct answer is 'birds allow their temperature drop in order to increase their production efficiency.'

answer; vertical marketing system;