96% of marine animal species became extinct in the Permian mass extinction at the end of the Paleozoic, 252 MYA. Why does the blue curve show only a 50% drop at that time?

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?

Individuals do not compete directly for resources, but are prey for the same predator

Use the distance formula to determine weather each pair of segments have the same length