Diffusion is fastest when the concentration gradient is ________

a. small.
b. modest.
c. large


c

Biology & Microbiology

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Which of the following properly states the relationship between global temperature and global CO2 levels?

a. in the past 500 years, the temperature has increased rapidly, along with increases in carbon dioxide levels b. in the past 500 years, the temperature has increased rapidly, along with decreases in carbon dioxide levels c. in the past 140 years, the temperature has increased rapidly, along with rises in carbon dioxide levels d. in the past 140 years, the temperature has increase rapidly, along with decreases in carbon dioxide levels e. in the past 140 years, the temperature has decreased rapidly, along with decreases in carbon dioxide levels

Biology & Microbiology

Describe endotoxins and exotoxins. What effects do they each have on infected persons? What will be an ideal response?

Biology & Microbiology

What process resulted in the loss of heath hens in North America?

A) competitive exclusion B) an extinction vortex C) a mutualism D) the negative effect of heterozygosity on fitness

Biology & Microbiology

A karyotype of one of your skin cells would reveal a total of 46 chromosomes. How many of these are maternally inherited autosomes?

a) 23 b) 22 c) 46 d) 24 e) 21

Biology & Microbiology