48. Use the diagram below to draw the organisms in a four-step food chain. You can choose desert ecosystem or an aquatic ecosystem. Labelach of the fourtrophic evet
49. If 575, 250 Calories of energy are available at the first trophic level, calculate the number of
Calories available to the 2-, 34, and 4 levels.
2 Level:
34 Level:
4 Level:
50. Is it possible for an inverted pyramid to exist, like the one show here? Explain
your answer

The pressure in a fluid is affected by which characteristics of that fluid

Ageochemist examines a piece of metal that he found in the soil. he performs tests to identify the metal from its density, electrical conductivity, and melting point. which statement best describes his investigation? a. he is determining physical properties that are sufficient to identify the metal.b. he is determining chemical properties that are sufficient to identify the metal.c. he is determining physical properties that are insufficient to identify the metal.d. he is determining chemical properties that are insufficient to identify the metal.

What is the approximate vapor pressure when the gas condenses at 70 degrees celsius