Describe how the consumer in one level of the pyramid obtain energy from the organism at the previous level of the pyramid

Ageologist determines that a sample of a mineral cant be scratched by a steel nail but can be scratched by a masonry drill bit based on this information the sample mineral has to be softer than

The location of the stomach is the diaprham

When does the circulatory system work with the respiratory system? a. during blood cell formation b. during cellular respiration c. during intestinal digestion d. during a viral infection