Which trophic level forms the base of a food chain?
A) primary consumers
B) quarternary consumers
C) secondary consumers
D) primary producers
E) tertiary consumers
Correct Answer:
Verified
Q2: The physical location in the environment to
Q3: The conversion of gaseous nitrogen (N2) to
Q4: Which of the following is not correct
Q5: The thin envelope of life that surrounds
Q6: Thiobacillus thiooxidans is found in an environmental
Q7: The conversion of nitrate (NO3 ) to
Q8: Which is mismatched?
A)parasitism - one organism benefits
Q9: Carbon dioxide (CO2) is
A)removed from the atmosphere
Q10: Which of the following can carry out
Q11: The oxidation of ammonia (NH4+) to nitrate
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