Which of the following is an element found in all organic compounds? (B.9A) Zinc

Iron

Carbon

Protein

Explain the importance of producers, primary consumers, secondary consumers and decomposers in an ecosystem.

a client has been prescribed misoprostol for the treatment of peptic ulcer disease. what is a true contraindication for this medication

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.