The Panamanian golden frog is in decline because of ________, which are being driven by ________.
A. introduced species; increased global trade
B. outbreaks of a fungus; deforestation
C. outbreaks of a fungus; global climate change
D. outbreaks of a virus; global climate change
E. outbreaks of a virus; deforestation
Answer: C
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What is the pH of a solution that contains 0.2 M H2CO3 (carbonic acid) and 0.2 M NaHCO3? The pKa of carbonic acid is 6.4
A. 6.7 B. 6.4 C. 6.0 D. 5.8 E. 5.3
Which of the following are part of the inflammatory response? (Check all that apply.)
_____ Antibodies and interferons are produced against the antigens. _____ Histamine and other chemicals are released, which produce redness, warmth, and edema. _____ Invading agent causes the release of pyrogens, which produce a fever. _____ Neutrophils and macrophages attack the invading microbes and contribute to the pus.
If you conduct a monohybrid cross of two heterozygous Yy pea plants, what percentage of the offspring will be heterozygous? Select one:
a. 25% b. 100% c. 75% d. 50% e. 0%
An ecological area inhabited by a specific species is its ________.
Fill in the blank(s) with the appropriate word(s).