Which of the following are the two major abiotic factors that shape terrestrial biomes?
a. precipitation and temperature
b. temperature and soil
c. organisms and climate
d. precipitation and soil
a. precipitation and temperature
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The tuft of fenestrated capillaries at which filtration takes place in the mammalian kidney is referred to as the
A. glomerulus. B. Bowman's capsule. C. renal corpuscle. D. proximal convoluted tubule. E. collecting duct.
You are performing an experiment to assay phosphorylation of a substrate by a protein kinase. Based on the data in the table below, what do these experimental results suggest? SubstrateProtein kinaseGTPPhosphorylation detectedTest sample+++yesControl #1-++noControl #2+-+yesControl #3++-no
A. GTP is not required for phosphorylation. B. The substrate can undergo autophosphorylation. C. The protein kinase is required for phosphorylation. D. The substrate is not required for phosphorylation.
When microbes are in the dark, they do not produce molecules called carotenoids because the PR proteins are bound to DNA. In the light, however, carotenoids are produced because the PR proteins unbind the DNA. Which of the following graphs best
summarizes these statements about carotenoid production in microbes? A)  B)  C)  D) 
Short, hairlike projections from the plasma membrane, occurring usually in larger numbers.
What will be an ideal response?