What is the loss of body fluids?

Scientists who study the anatomy of the systems in the human body focus their studies on

Which of the following supports the argument that viruses are nonliving? a) they are not cellular. b) their dna does not encode proteins. c) they have rna rather than dna. d) they do not evolve.

Megan is 16 years old and overweight. she loves junk food and chocolate. a 10 minute walk to school is her only exercise every day. which is the best method to megan lose weight