Assume that the Earth receives 400,000 units of radiant energy from the Sun and phytoplankton has already consumed some of it. Zooplankton has now consumed the phytoplankton. How many units of radiant energy has the zooplankton received?

During an experiment, readings for blood pressure in a persons body were found to be constant . however , when he measured by a different blood pressure cuff , the readings differed by 15 points for each reading. this difference indicates that the results are

Energy for use in cells is stored in form of 1.chemical bond energy 2.physical energy 3.heat energy 4.mechanical energy.

What is a food web? a. the structure used to trap food b. a set of complex carbohydrates c. a group of interconnected food chains d. the pattern of food nutrition