Which of the following would be considered density-dependent factors that could affect population growth?
A. frost
B. droughts
C. resources
D. fire
E. severe weather
C
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Recent evidence suggests that hydrogenosomes and mitochondria evolved from different endosymbiotically derived organelles.
Answer the following statement true (T) or false (F)
The purines of DNA are
A. adenine and guanine. B. thymine and adenine. C. serine and threonine. D. thymine and uracil. E. thymine and adenine AND thymine and uracil.
What term describes the process of an unfertilized egg developing into a normal offspring?
a. parthenogenesis b. sexual reproduction c. budding d. fragmentation
How might global warming affect an animal species that has narrow temperature requirements?
A) It may cause the expansion of the species' range. B) It may cause the extinction of the species. C) It may reduce the diseases that threaten the species. D) It may have no effect on the species.