The lungs are part of the system.
a. musculoskeletal
b. urinary
c. nervous
d. respiratory

Will mark you as ! keiko’s teacher was discussing the theory of endosymbiosis. she asked keiko to mark the organelles in the diagram that most closely resembled prokaryotes. which organelles should keiko mark? * the first image is the question and the second image is some information to you answer the !

Hairs that clean dirt out of the air in your nasal passages are called: a. sinus b. trachea c. cilia d. mucus

Communication and transportation have improved as a result of scientific advancements. select the best answer from the choices provided of mark this and return save and exit next