Scientists dye cells using fluorescent molecules that bind to the cell membrane so that the cells can be seen under a microscope. proper visualization of a human egg cell under the microscope requires that a high enough concentration of dye molecules be attached to the cell membrane. which value would be important for determining how many dye molecules would need to bind to the egg in order to visualize it?

a. the volume of the egg
b. the surface of the egg
c. both the surface and the volume of the egg

Hannah is writing a report on how albedo affects the global climate. she’s proofreading her passage for any factual errors. which sentence must hannah correct before submitting her report? earth receives energy from the sun. this energy drives many of the processes on earth, including its climate. some part of this energy is reflected by earth’s surface. we use the term albedo to describe the reflected energy. albedo of an object is the ratio of the reflected radiation to the total radiation reaching the object. a value of 0 means no energy is absorbed by the object, whereas a value of 1 means that all of the energy is absorbed. in this way, the albedo of an object can influence earth’s atmospheric temperature.

Which function is performed by earths atmosphere? a. ultraviolet rays are prevented from reaching the ozone layer. b. earths temperature is raised and moderated by trapping in heat c. charged particles from the sun are prevented from reaching earth. d. magnetic charges from space are prevented from reaching earths surface.

What is the number of moles in 15.0 g ash3?