A sample of digestive juice was removed from the stomach of a pig. The juice was placed in a test tube along with some grains of wheat. A second test tube was set up containing an equal number of wheat grains, with distilled water rather than digestive juice. The test tubes were kept for 8 hours at 40 degrees C. After 8 hours the grains inside the digestive juice had broken into tiny particles. The grains of wheat, in the water, were wet but otherwise unchanged. BOTH of the test tubes were kept for 8 hours at 40 degrees C. These conditions are called

A; Constants
B: Experimental groups
C:Factors
D:Control groups

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?

When a human or animal consumes food, the carbon in that food is most likely to be converted into which of the following elements? a. carbon remains carbon b. nitrogen c. oxygen d. hydrogen

How does science influence the decisions made about social, economic, and political issues?