A researcher measures the number of birds belonging to each of 5 different species sighted in a particular nature preserve over a three month period. What kind of research is this?

Who disproved Descartes' hydraulic model of muscle contraction by showing that they

contracted in response to electrical stimulation? a. Galvani b. Müller c. Helmholtz d. Flourens e. Mill

________ reported that watching violent behaviors makes children more likely to behave violently

a. Watson b. Thorndike c. Tolman d. Bandura e. Garcia