Prior to Migration, a Hummingbird Consumes Large Amounts of Nectar

Multiple Choice

Prior to migration, a hummingbird consumes large amounts of nectar and insects, nearly doubling its weight.The added weight is stored primarily as

A) glucose, because most of their diet is sugars.
B) glycogen, because glycogen can be stored in the muscles needed for flight.
C) fat, because it is the most compact fuel.
D) protein, because it will be needed for muscle repair during flight.
E) water, because dehydration is one of the greatest risks the birds will face during migration.