Which of the following is not an observed effect of global warming on organisms?
A) Some species of birds and frogs now begin their breeding seasons later in the year.
B) Many butterfly populations have shifted their ranges to the north.
C) Many polar bears show signs of starvation as their hunting grounds melt away.
D) Corals "bleach" when increased water temperatures cause them to expel their symbiotic algae.
Correct Answer:
Verified
Q12: Captive breeding
A)can work for animals,but is generally
Q13: A regional assemblage of interacting ecosystems is
Q14: Greenhouse gases include
A)carbon dioxide and nitrogen.
B)carbon dioxide
Q15: One way in which populations and species
Q16: DDT and mercury
A)accumulate in the tissues of
Q18: Which of the following statements about movement
Q19: The introduction of wolves into Yellowstone National
Q20: CO2 in the atmosphere is absorbed by
Q21: The ability to change phenotype in response
Q22: Some populations,especially those with high genetic variability
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