I think they are all biotic factors..hmm if not take out whichever sounds the most not fitting.
Answer:
non-specific system
Explanation:
The non-specific immune system is the system that works 24 hours a day, 7 days a week and protects you, regardless of the organism you encounter. This system is composed of the general defenses of the organism that work continuously, creating barriers that protect the body from the entry of any pathogen or foreign substance. This system is composed of T cells, which are true killers of pathogens and which guarantee efficient and complete safety.
The correct answer is D. Precambrian Time - Paleozoic Era - Mesozoic Era - Cenozoic Era. This is the correct order of the geologic time scale, from oldest to most recent. Thank you for posting your question. I hope this answer helped you. Let me know if you need more help.
Liquid.
Earth can sustain life because it contains liquid water.
