Questions with the keyword 'animals'

• Why is it that animals and plants are different in that animals breathe in oxygen and breathe out carbon dioxide but by SOPHIA M to Aaron, Abbey, Keith, Natalie, Pete Comments: (No comments so far )
• What do you think about using animals for scientific reasons to help humans by 592smbd43 and 5 others. to Abbey, Natalie, Keith, Aaron Comments: (No comments so far )