9. Which word refers to a condition where all physical, chemical, and internal conditions of a living organism is maintained in a steady state?
A. adaptation
B. homeostasis
C. metabolism
D. reproduction
10. Tapeworms consume the host's partially digested food and deprive the latter of food and nourishment. Which symbiotic relationship exists between tapeworm and host?
A. commensalism
B. mutualism
C. parasitism
D. predation​