According to the video, when organisms reproduce sexually, variations (differences)... decrease (diversity goes down) organisms within a species are more similar.

increase (diversity goes up) organisms within a species differ greatly.

The rigid beam is supported by the three suspender bars. bars ab and ef are made of aluminum and bar cd is made of steel. if each bar has a cross-sectional area of 450 mm2, determine the maximum value of p if the allowable stress is (σallow)st = 200 mpa for the steel and ( σallow)al = 150 mpa for the aluminum. est = 200 gpa and eal = 70 gpa.

The slope of a velocity time graph over any interval of time gives the during that interval

If the work required to stretch a spring 3 ft beyond its natural length is 15 ft-lb, how much work is needed to stretch it 27 in. beyond its natural length?