Joshua has invented a special greenhouse. By turning a special dial in his new greenhouse, Joshua can choose which type of sunlight can enter the greenhouse. When only ultraviolet light is allowed to enter the greenhouse, what will happen while Joshua is standing inside the greenhouse? A. Joshua can see objects inside the green house.

B. Joshua can see objects outside the greenhouse.

C. As time passes, Joshua begins to sunburn.

D. As time passes, it becomes warmer inside the greenhouse than it is outside.

Astudent conducts an experiment to determine how the amount of water given to a plant affects it growth what is the dependent variable for this experiment

Coral reefs support more species per unit area than any other marine environment on earth. what is one way coral reefs are important to the health of the biosphere

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.