Over the last 50 years, scientists have recorded an increase in the average atmospheric carbon dioxide. Which of the statements would be the best reason for these findings?
A) Removal of large sections of rain forests through deforestation.
B) Testing equipment has become more sophisticated allowing scientists to get better results.
C) Atmospheric carbon dioxide increases normally in a 50-year time span.
D) More organisms exist on Earth's surface now compared with 50 years ago.
Ans: A) Removal of large sections of rain forests through deforestation.
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A. haploid, diploid B. diploid, haploid C. diploid, triploid D. triploid, diploid E. haploid, triploid
Most microbiology teaching labs operate at biosafety level ____
Fill in the blank(s) with the appropriate word(s).
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A. nucleoid. B. chloroplast. C. ribosomes. D. nucleus. E. mitochondria.
What fraction of the genome contains genes that are essential for the survival of an organism, meaning that a homozygous null for them is lethal?
What will be an ideal response?