Experiments with __________ revealed that
__________ is the main carbohydrate that is
transported in phloem.
a. bees; sucrose
b. aphids; starch
c. bees; starch
d. ants; sucrose
e. aphids; sucrose
Answer: e
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Describe where most carbon is stored in temperate zone forests and grasslands. What will be an ideal response?
________ are toxic proteins secreted by pathogenic bacteria, and ________ are toxic components of the outer membrane of gram-negative bacteria
A) Endotoxins; parasites B) Endotoxins; botulinum toxins C) Exotoxins; enterotoxins D) Exotoxins; endotoxins
Which of the following terms describes NO3- ? NO2- ? N2O ? N2?
A) ammonification B) denitrification C) nitrification D) nitrogen fixation E) anaerobic respiration
Give an example of two groups of organisms that share one or more similarities due to shared ancestry and contrast this with two groups of organisms that share one
or more similarities due to the process of natural selection independently fashioning similar traits. Explain both the shared ancestry and the selective forces that worked to fashion these similarities in each example, and use the scientific term given to each set of similarities. Try to use examples other than those presented in your text. What will be an ideal response?