The first step of cellular respiration is glycolysis, where a six carbon glucose is broken down into a three carbon, this is called pyruvic acid. You're welcome
If you want the other steps in cellular respiration or cytology, just ask, I'm an A+.
Volume is the space that an object occupies. Mass is the amount of matter in a given object.
Answer:
immune system
Explanation:
The adaptive immune system reacts specifically to pathogens (germs). It is able to recognize attacking pathogens and fights against certain antigens or foreign substances. The next time a known antigen is encountered, the adaptive immune system can respond faster.
The answer is B. Please mark Brainliest!!!