In foveal vision, a. each ganglion cell excited by many receptors b. each ganglion cell is excited by a single cone c. ganglion cells respond poorly to color vision d. ganglion cells respond well to dim light

Which statement correctly describes other ways in which nebulae and stars are different? a. a star always has a higher density than a nebula. b. stars can form inside a nebula but a nebula can never be produced by any star. c. stars can never form inside a nebula but a nebula can be produced by any star. d. a nebula always has a higher density than a star. reset submit

What could happen if two base pairs on a strand of dna or switched

Which pair of chromosomes determines sex in humans? a.15th b.1st c.23rd