Biology

Leopard seals are known to hunt penguins by rocking the ice floes on which penguins rest, causing them to slip into the water where the seal can catch them. Blue whales are filter feeders and do not hunt penguins, and killer whales do hunt penguins but do not use this specific hunting method.

The giant panda is native to China, primarily inhabiting mountain ranges in central China such as Sichuan. None of the other countries listed are natural habitats for the giant panda.

In diabetes, high blood sugar levels lead to excess glucose being filtered into the urine, causing glycosuria (presence of sugar in urine). This is a key diagnostic feature of diabetes.

A fox's offspring is called a cub, and a group of foxes is known as a sleuth or leash. This matches the question's description accurately.

Pomology is the branch of science that deals with the study and cultivation of fruits, making option B the correct answer. It focuses on fruit growing and management.

Digestion of food is completed in the small intestine where enzymes break down nutrients for absorption. The stomach initiates digestion, and the large intestine mainly absorbs water and forms feces.