What does it mean when a ladybug has no spots?

How does photosynthesis show the conservation of mass and energy?

Abeaker of water was heated and then placed on a bench in the laboratory. the water cooled until it was the same temperature as the air in the laboratory. which of these explains the mechanism by which the water cooled? a. heat energy was transferred from the water to the air. b. water molecules from the water formed warm water currents. c. the water molecules absorbed energy from the molecules in the air. d. the water released radiation until it contained no heat energy.

Many birth-control pills release a constant amount of synthetic estradiols and progesterone for 21 days. true or false