Answer:
the answer is one i think
No. The heart Muscles contract without needing an external stimulus that’s why I heart continues to be for a time when removed from the chest the heartbeat originates in a bundle of muscle cells in the top right chamber of the heart called the Sinoatrial node.
F js f i f g i f i f i f i ao c si
Answer:
American community survey
Explanation:
American community survey is the largest household survey administered by United States Census Bureau. It was launched by U.S. Census Bureau in year 2005 to help make the collection of detailed information more efficient and more timely. A survey can be defined as a research method used for collection of data( detailed information). The American community survey helps in collection of these detailed information from households more efficiently and on time.
Answer:
These characteristics indicate that the hummingbird is more like the bee than the other birds.
Explanation:
Hummingbirds are small and colorful birds belonging to the family Trochilidae, for which about 330 species have been described. They exist only in the Americas, where they can be found in the most diverse environments, where they occur from the extreme of South America to Alaska, being most abundant in the regions near Ecuador. These birds have characteristics very similar to bees that are not found in other birds, such as wing movement speed, hovering ability, backup ability and nectar-based diet. Because of these characteristics, many may conclude that the hummingbird is more genetically similar to the bee than the other birds, but this is not true, as scientists have confirmed that these characteristics have evolved independently into hummingbirds and bees.