What is responsible for identifying foreign invaders and remains in the system for a long period of time? a. antigens. b. red blood cells. c. lymph nodes. d. axons. will mark brainliest this is for science

Does mitochondria still meet the definition of a eukaryote why or why not?

Describe the response the kidneys have to dehydration and excessive water intake. what happens to the concentration of urine in each case ?

According the inverse square law, doubling the distance from the source of the sound, a speaker, for example, will drop the sound 6 db each time. if you were standing in the back of an auditorium, 32 feet away from a speaker not using any amplification, would you be able to hear a speaker clearly? why or why not?