Answer:
9:3:3:1
Explanation:
pretty sure it's 9:3:3:1, I might be wrong sorry
Answer:
it's usually because they have no predators or very little
Explanation:
Having no predators means a lot of growth for the organism. this can easily lead to extinction of other organism
Answer: A. before history was written.
Explanation:
I'm not sure if you need an explanation, but prehistoric means "very old or out of date." Hope this helps, Good luck! :)
Answer:B antvenin as is always specific
Explanation:othe like antigen are for antibodies snake venom is just venom while penicillin is from fung
Yes
Enhancing safety
Reducing error
Enhancing comfort
Increasing productivity