If phosphorus is added to water that contains no other major nutrients, the major microbial group that will bloom if the water is exposed to light will be the ________.
A. green algae
B. green sulfur bacteria
C. cyanobacteria
D. green nonsulfur bacteria
Answer: C
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Which of the following defines ecological resistance?
a. the ability of an ecosystem to remain at equilibrium despite disturbances b. the ability of a species or group of species to synthesize food molecules c. the speed at which an ecosystem recovers equilibrium after being disturbed d. the actions required for the species in a system to remain the same
The stage of prophase I in which mammalian oogenesis can arrest for years is
A) leptotene. B) zygotene. C) pachytene. D) diplotene. E) diakinesis.
During the dark reactions, energy is used to generate molecules made of carbon. What is the name of the molecule these carbons form?
A) lipids B) glucose C) proteins D) starch molecules
Which portion of the nephron receives filtrate from the glomerular capsule?
A) Proximal tubule B) Nephron loop C) Collecting duct D) Glomerulus E) Distal tubule