Answer:
Ostriches, emus, cassowaries, rheas, and kiwis can't fly. Unlike most birds, their flat breastbones lack the keel that anchors the strong pectoral muscles required for flight. Their puny wings can't possibly lift their heavy bodies off the ground.
Explanation:
Answer:
Frog and human have a similar digestive system in times of their esophagus, stomach, small intestine, and large intestine.
EXPLANATION:
The similarity between the frog and the human digestive system is mainly in the organs.
Frog has the same digestive system organs as seem in human. This includes the esophagus, stomach, small intestine, and large intestine.
For Both, the food passes through the mouth, goes through the esophagus, then the stomach, small intestine, and large intestine.
Both uses Mouth and esophagus as a medium to take food in (ingestion). Has food being turned into a liquid mixture in their stomach. Uses small intestine to break down and absorb nutrients to all areas of the body while the waste will be excreted from the digestive system.
Answer:
A. They often compare information from all over the world.
B) is the correct answer. The flu virus does not have the same genetic makeup each year as with each individual it infects its rapidly mutating.
