You are conducting an experiment to determine what concentration of disinfectant is most effective in killing bacteria. In this example, the concentration of disinfectant would represent the
(a). control.
(b). experimental variable.
(c). response variable.
(d). data.
(e). hypothesis.
Ans: (b). experimental variable.
You might also like to view...
Which of the following statements about bulk transport is false?
A. Bulk transport is found in simple multicellular organisms, but not unicellular organisms. B. Bulk transport involves the active transport of molecules throughout an organism's body. C. Bulk transport allows for materials to be moved over greater distances than is possible with diffusion. D. Bulk transport moves materials at faster rates than is possible with diffusion. E. Bulk transport allows for animals and plants to grow very large.
What does biological ancestry describe?
A) the ancestors from whom mitochondria were inherited B) interaction between different generations in a population C) the ancestors from whom specific alleles of nuclear genes were inherited D) family trees or pedigrees
When an embryo partially splits after day 12 of development what arises?
a. fraternal twins b. triplets c. a fetus with extra limbs d. conjoined twins e. fetus in fetu
The phylum name Arthropoda refers to:
A. a hard exoskeleton. B. the ability to fly. C. jointed appendages. D. respiratory capabilities. E. a segmented coelom.