You have isolated an aerobic gram-positive, endospore-forming bacterium that grows well on nutrient agar. To which of the following groups does it most likely belong?
A) phototrophic bacteria
B) gammaproteobacteria
C) deltaproteobacteria
D) bacillales
E) The answer cannot be determined based on the information provided.
D
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For filtration to take place through the fenestrated capillaries of the renal corpuscle, _____
A) the concentration of ions must be greater in the capillaries (the glomerulus) than in the renal tubule B) there must be a greater pressure inside the glomerulus than in the renal tubules C) there must be a larger concentration of proteins in the renal tubule than in the glomerulus D) there must be more than one capillary bed in the renal corpuscle
What is the sex of the individual whose karyotype is pictured?
a. Male
b. Female
Why do scientists hypothesize that RNA was the first form of genetic material?
A. RNA can store genetic information and form membranes. B. RNA can store genetic information. C. RNA can catalyze reactions. D. RNA can catalyze reactions and store genetic information. E. RNA can catalyze reactions and form membranes.
Activation of B cells can occur when antigen binds to B cell surface immunoglobulin receptors.
Answer the following statement true (T) or false (F)