Multiple Choice
Extinction is_______________ .
A) the loss of communities from the planet
B) a natural process
C) proceeding more slowly now than at any other time
D) something that occurs only rarely
E) always caused by human disturbance
Correct Answer:

Verified
Correct Answer:
Verified
Q2: In North America,many kinds of birds have
Q3: Biodiversity enhances human food security because_ .<br>A)drugs
Q4: Compared to the long- term historical average
Q5: The ecotourism industry relies upon_ .<br>A)an interest
Q6: Species that are found only in specific
Q8: Species richness is affected by many variables.As
Q9: _have greater species richness than_ .<br>A)Deserts;tropical rainforests<br>B)Tropical
Q10: The five major factors contributing to extinction
Q11: Genes are located on molecules called_ .<br>A)nuclei<br>B)deoxyribonucleic
Q12: In general,biodiversity is_ .<br>A)75% plant species and