Native Americans planted crops of corn, squash, and beans. The beans increased the level of nitrogen in the soil. The corn required high levels of nitrogen and provided a support for the beans to climb and receive more sunlight
The large leaves on the squash shaded the ground and limited weed growth. This agricultural method
A) caused mass extinctions.
B) reduced the ecosystem services.
C) is a type of sustainable agriculture.
D) increased the number of pests in the fields.
E) created wildlife corridors.
C
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Which of the following is the initiator codon?
A. UGA B. UAG C. AUG D. UAA
Cultures of a bacterial strain were incubated in a standard incubator, in an anaerobic jar, and in a candle jar. After incubation, there was moderate growth of cultures in the candle and anaerobic jars, but heavy growth of the culture in the incubator. This species is a(n) ________.
A. facultative anaerobe B. obligate aerobe C. anaerobe D. microaerophile E. capnophile
Each end of a long bone is called ____
a. the diaphysis b. the epiphysis c. the shaft d. compact bone e. canaliculi
Rubella
> Is particularly serious for pregnant women > Is often asymptomatic > Can be prevented through vaccination > Is highly contagious > Can cause miscarriage and birth defects > Can generally be treated with antibiotics