Miranda notices that her cat salivates as soon as her cat hears the sound of the electric can opener. In this example, the sound of the can opener is the .a. primary stimulus. b. positive reinforcer. c. conditioned stimulus. d. secondary reinforcer. e. tertiary reinforcer.

Turtle hatchling survivorship rate is low in many turtle species due to predation. amanda researched the predatory rate on a species of turtle eggs in the red river. the eggs were harvested from trapped turtles and the egg's cloaca film (reproductive discharge) was either washed off or left on once gathered. research suggests that predators use the female's cloaca scent to locate the eggs. the eggs were only handled when wearing gloves and then reburied along islands where the turtles were trapped. the nests were monitored by cameras and manually on foot and data on nest predation were recorded. a. based on the experimental design, what is the dependent variable? b. based on the experimental design, what is the independent variable? c. based on the experimental design, what is the control?

Which of the following particles always has a positive charge? a. electronb. neutron c. proton d. ion

Mineral rich water heated by newly found oceanic crust escapes through cracks in the ocean floor called