What do these two changes have in common? making paper from wood
cellular respiration
Select all that apply.
Both conserve mass.
Both are caused by cooling.
Both are caused by heating.
Both are only physical changes.

56.16 gregor mendel was the first scientist to use statistics to analyze scientific data. before mendel's experiments, scientists believed that organisms acquired traits from their environment and passed them on to their offspring. after mendel's discoveries were accepted, scientists realized that traits passed to offspring were the result of genes being passed from parents to offspring. this is an example of pls

Which of the following describes a compound? (hint: carbon and oxygen bo a. a piece of pure carbon, containing only carbon atoms b. oxygen gas surrounding a solid piece of carbon c. a substance made of two oxygen atoms for each carbon atom carbon and oxygen atoms mixed without being bonded together

#20 which type of bond is formed when bases pair in dna? ionic bond covalent bond coordinate bond hydrogen bond