What in space , approaching Mars ; has gas emanating behind it ; gas resembles a glowing light

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?

During endocytosis, cells expel what they don't need take in what they need shrink due to loss of water

Why reason best illustrates why hershey and chase chose to use viruses in their experiment?