Which type of vessel is found in “bed” interlaced within tissues?
a. artery
b. arteriole
c. capillary
d. venule
e. vein
ANSWER: c
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Nutrient poor waters are described as being
A. hypoxic. B. oligotrophic. C. autotrophic. D. eutrophic.
Which plant function is NOT typically a main task performed by stems?
a. mechanical support b. the storage of water, nutrients and sugars c. energy capture d. routes for vascular tissues e. new growth
Increased carbon dioxide concentrations may contribute to
a. ozone depletion. b. global warming. c. eutrophication. d. groundwater contamination. e. biomagnification.
Why might the analysis of endosymbiotic bacterial genomes be misleading for understanding the minimal gene set?
a. They may have lost genes that would have been essential to early life-forms because they may have reduced metabolic requirements. b. They may have gained genes to be able to live within another organism. c. They are bacteria and therefore have nothing in common with LUCA. d. Their genes can be disrupted by transposons.