I REALLY NEED HELP WITH THIS QUESTIONN ITS FOR MY SCIENCE CLASSS well now that that's out of the wa i just wanted to tell you something...

Your so pretty/beautiful/handsome/gorgeous whatever you prefer. I really hope you achieve everything that you want in life. I hope you are happy and healthy. Also, I just want to say for anyone reading this know you are worth it and you are loved!:)

What is histamine and what is its role in allergic reactions

Is there any species that went extinct in recent years due to natural causes (not caused by human interaction). if so, what caused it?

Based on the observation that only male crickets produce a song, you hypothesize that a male's song is a form of communication to potential mates. you set up a simple experiment to test this hypothesis. in the laboratory, you place a male snowy tree cricket in enclosure a, which is adjacent to enclosureb. in enclosure b, you place other insects, one at a time, and observe their responses to the male's song. the enclosures are designed so that the two insects being tested cannot see or smell each other, but sound is transmitted from enclosure a to enclosureb.