Question 5. A- it grew from tiny village to a boomtown
question 7. false
question 8. false
Animals use the respiratory system to breathe in oxygen and other gases and expel gases like CO2, right? O2 in, CO2 out.
Mendeleev called the rows periods.
The answer would be <span>B. Abiotic factors
</span><span><span>Hope this helps!!!</span>
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