Which conclusion can be made from the observation below? Hypothesis: A feather weighing two grams takes longer to fall from a distance of six meters than a two-gram ball bearing.

Procedure: Use a timing device to measure the amount of time it takes for a feather and a ball bearing to fall to the floor from a distance of six meters.

Observation: The feather took more time to fall to the floor than the ball bearing.

A. The feather fell slower because it weighs less.
B. The ball fell faster because it has more gravitational force.
C. The ball fell faster because it weighs more.
D. The feather fell slower because it encountered more air resistance.

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 occurs after a natural or unnatural disturbance in an ecosystem

2polnis which of the following is an advantage of an in vitro experiment?me