What is the evolutionary significance of processes which increase genetic variation?.

Darius is observing a family of geese, which includes a male goose, female goose, and several goslings. when a dog approaches the geese, the male goose hisses at the dog and flaps its wings threateningly. is the behavior of the male goose an example of an adaptation?

Four types of motile cells in human body?

Defend or refute the argument that the government has too large a presence in the agriculture industry.