Which of the following statements is true?
a. both light waves and sound waves are mechanical waves.
b. both light waves and sound waves are electromagnetic waves.
c. sound waves are electromagnetic waves and light waves are mechanical waves. d. light waves are electromagnetic waves and sound waves are mechanical waves.

Which of the following produces carbon dioxide? a. plants b. animals c. decomposers d. all of the above

Which best describes carbon dioxide’s path out of the body

The table lists the observations students made about four specimens under a microscope. based on these observations, what specimens did the students examine? animal plant virus prokaryote cell membrane present ribosomes present lysosomes present nuclear membrane present cell wall present ribosomes present nuclear membrane absent cell wall present ribosomes present nucleus present large vacuole present reproduces inside of a cell nucleus absent rna present 2019 edmentum all rights reserved intl