Which observation tool allows doctor to monitor our blood circulation in real life

What is the following best defines climate?

This is the process of making a prediction based on the results of prior observations of similar events.

What's wrong with this ecological pyramid? (multiple choice)1. secondary consumers should be at the bottom of the pyramid2. the sun has an arrow leading to decomposers 3. primary consumers should come after the sun4. energy retained should increase from the bottom to the top5. the sun should be at the bottom of the pyramid