Summarize the structure and function of the muscular system please help

Aperson with age is more likely to catch diseases that healthy people usually don’t catch.what are these infections called?

Which is not a characteristic of bacteria? a. they are unicellular. b. they are prokaryotic. c. they are the smallest form of life on earth. d. they are multicellular.

Which of the following statements about protists are true? a.they are typically found in moist environments. b.they are all unicellular. c.they have a nucleus. d.they are all multicellular.