Dinosaurs walked the earth at the same time that the first mammals appeared. these events coincided during which of the following periods? a. mississippian b. pennsylvanian c. permian d. triassic

As , plants meet their needs for making food from air, soil, water, and the sun's energy in a process called there are plants called grow high in trees without here are words to put in the blanks. 1.) producers 2.) consumers 3.) chloroplasts 4.) epiphytes

10111213141516lactic acid fermentation differs from ethyl alcohol fermentation in thato in ethyl alcohol fermentation co2 is also producedlactic acid fermentation can occur in all living thingsethyl alcohol fermentation can only occur in plantsonly lactic acid fermentation can produce more atp

There are fewer than 100 naturally occurring elements in the universe, but there are millions of different unified substances. explain how this can be true.