Which of the following does not make movement in animals possible? a. the contraction and relaxation of muscle cells b. the contraction and relaxation of the brain c. the connection of muscles to outer coverings d. the connection of muscles to bones

Which properties describe all matter?

Differentiation of cells changes the nucleic information. true false

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