Well biotic factors are living things basically so anything living would apply. Mold could be an answer or lettuce in a fridge. Hope this helped.
The development of a new species is called speciation
hope this helped
Answer:
Microbes have 10 jobs actually... but here's 3 of them
Microbes play defense
Microbes boost the immune system
Microbes protect us from auto-immune diseases
Explanation:
I hope this helped!
Warm fronts
Not cold fronts because those move to warm