Which of the following hypotheses is testable using scientific methods? Select one:
a. People with type O blood are natural meat eaters.
b. Peacocks like to display their large tail feathers.
c. Bees can see ultraviolet light that humans can't.
d. The dinosaur Tyrannosaurus rex was a scavenger, not a predator.

Explain light independent reactions

Which of the following is not a food produced in rainforests? a) coffee b) cocoa c) avocados d) wheat

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.