music: 80's Chart Toppers: Name The Artist: Sister Christian?

Questions

Migrating geese fly in a V-formation to save energy. A goose's wings churn the air and leave an air current behind. In the flying wedge, each bird is in position to get a lift from the current left by the bird ahead. It is easier going for all, except the leader. During a migration, geese are apt to take turns in the ----------?

Garter snakes, though reptiles, do not ----------. They bear young, just as mammals do.?

Between the mid-1860's and 1883, the ---------- population in North America was reduced from an estimated 13 million to a few hundred.?

The American ----------, with its eyes placed toward the top of its head, can see backward and upward, and forward and upward, with binocular vision and, laterally, almost 180 degrees with each eye.?

Milk delivered to the store today was in the cow ----------?