How did the scientists figure out that trees were sending food to smaller trees in their surrounding area? A. By planting seeds in the lab.
B. By genetic testing.
C. Observing the root systems of the trees.
D. By listening to low frequency sound communication

Which of the following types of stars is most likely to end up as a supernova? in graph a, the curve peaks at 800 nm, in the red section of the visible light spectrum. in graph b, the curve peaks at 550 nm, in the green section of the visible light spectrum. in graph c, the curve peaks at 450 nm, in the blue section of the visible light spectrum. in graph d, the curve peaks at 300 nm, in the violet section of the visible light spectrum. a b c d