If an astronaut is floating in space does she have less mass than when standing on earth

Electrons are extremely important to what area of technology? a) anti-aging research b) household product development c) electronics d) drug discovery

This chart lists four kinds of polymers and their sources. what can be known about all four polymers, despite their differences? they come from living things. they share ionic carbon bonds. they are at least 100 monomers long. they are made of repeating subunits.

Which of the following describes a situation where competition between producers exists