What does it mean to have a control group in an experiment and why is it important in an experiment?

Keep your choice of a major there is probably no single correct choice. a ) to yourself. b) in perspective. c) based solely on the expectations of others. d) all of the answer choices are correct.

Which scenario describes intraspecific, indirect competition? a. a peacock defends its territory against another peacock. b. lions and hyenas compete for the same prey animals. c. a male black bear eats fish in an area of a lake, so other black bears can’t. d. different species of birds fight over spilled popcorn on the ground.

The equation 24x2+25x−47ax−2=−8x−3−53ax−2 is true for all values of x≠2a, where a is a constant. what is the value of a? a) -16b) -3c) 3d) 16