Help please!! Historical phonetics is the study of how sounds have changed over time. Please give me an example of how speech has changed over time.

It has changed in many ways. We went from saying just short, simple, sounds to longer, more precise sounds. Also, We have made actual words with syllables.

This is what i found on google “phytoplankton, tiny organisms that live in the ocean, are autotrophs. some types of bacteria are autotrophs. most autotrophs use a process called photosynthesis to make their food.” i hope this you for what your looking for