The variables that investigators try to keep the same for both the experimental and the control groups are
(a) independent.
(b) controlled.
(c) dependent.
(d) a and c.
(c) dependent.
You might also like to view...
__________ can indicate a fruit or developing root
cells. a. A b. B c. C d. D e. E
The image in the above photograph is a prime
example of a. double mutualism. b. associative commensalism. c. interference competition. d. team predation. e. parasitism.
Mobile bits of DNA that can jump from one location on a chromosome to another location and do not code for a protein are called
A. transposons. B. exons. C. introns. D. pseudogenes. E. simple sequence repeats.
A glass capillary tube containing a chemical was placed inside a turbid pure culture of cells. Most cells moved away from the tube, but some cells were found inside the capillary tube. The chemical is likely
a. an attractant to all cells, but only a few had time to go into the tube. b. an attractant to most cells and a repellent to those within the tube. c. a repellent to all cells, and some cells by chance were within the tube. d. a repellent to most cells and an attractant to those within the tube.