Periodic disturbances of the Pacific currents that cause global weather changes are given the name
A. the Humboldt current.
B. the Japan current.
C. west equatorial drift.
D. gyrals.
E. El Niño.
Answer: E
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This protein or protein complex functions in the cell to stop cell division if the cell has experienced extensive DNA damage:
A. APC/C B. p53 C. FtsZ D. Condensin
Species with an opportunistic, or r-selected, life history strategy
A. are long-lived. B. are limited primarily by carrying capacity. C. provide extensive care for their offspring. D. produce many offspring. E. reproduce later in life.
A biologist who says that the human body might be
getting its power from “bacteria,” is referring to a. some cells that utilize bacteria to produce energy. b. bacteria in our intestinal tract that digest food to supply us with energy. c. the mitochondria in our cells that may have originated as endosymbiotic bacteria. d. the E. coli throughout the human body that produce ATP. e. photoautotrophic bacteria that, like plants, can produce carbohydrates from sunlight and carbon dioxide.
The adult form of which of the following animals is not capable of locomotion?
a. sponges b. jellyfish c. ctenophores d. planarians e. flukes