Based on the information provided, what general rule can be applied to estimate the amount of energy typically transferred from level to level in an energy pyramid?
Energy Transfer in Percentage
Tropic Level
Aquatic
Producers → Primary 9.4
Primary Secondary 11.1
Secondary Tertiary 9.7
Terrestrial
9.2
9.8
9.2
1. 50% rule
2. 20% rule
3. 0% rule
4. 10% rule

The hypothesis of continental drift states that earth's continents, which are located on tectonic plates, move relative to each other. which of the following is true of the movement of the tectonic plates? a. tectonic plates only move once every million years. b. they move at a rate of approximately 5 centimeters per year. c. tectonic plates never move, only the continents located on them do. d. their movements are very rapid and occur at random times.

The pharynx is the structure in the body that serves as a pathway of both air and food. how does the body make sure that food does not get into the lungs? the salivary glands secrete enzymes that pull food out of the air pathway. the small intestine pushes the air out of the digestive system. the pancreas breaks down food in the air pathway. the epiglottis closes the air pathway so that food will not enter it.

Hemoglobin is a proton that carries oxygen around the body what is hemoglobin made from