The event called the Cambrian Explosion resulted in an abrupt increase in
A. geological activity.
B. diversity of major animal groups.
C. algal diversity.
D. the number of days in the year.
E. the amount of fish, of a single species, in the seas.
B. diversity of major animal groups.
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What is the most common cancer found in males?
A. urinary and bladder B. prostate C. melanoma of the skin D. oral cavity E. colon and rectum
Renin is released by ________ cells of the ________.
A) principal : afferent arteriole B) granular : afferent arteriole C) granular : distal tubule D) principal : distal tubule E) intercalated : afferent arteriole
The lionfish is a venomous fish found primarily in the Red Sea and the Indian Ocean. In the 1990s, lionfish were accidentally released into the Atlantic Ocean, where they found abundant resources and favorable environmental conditions. Which of the following scenarios is most likely to result in the lionfish having a major impact on the communities into which they were introduced?
(A) With no natural predators, the lionfish population will become very large. (B) Some native species of invertebrates will develop a resistance to lionfish venom. (C) Random mating will allow the lionfish population to reach Hardy-Weinberg equilibrium. (D) A virus that specifically infects lionfish will become more prevalent.
Mycoses are typically highly contagious.
Answer the following statement true (T) or false (F)