Up until about 12,000 years ago, human populations were primarily limited by
A) widespread disease.
B) the availability of food.
C) limits of transportation.
D) widespread warfare.
B
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Pesticide use has resulted in increased pest resistance and therefore an increased use of pesticides.
Answer the following statement true (T) or false (F)
All peripheral countries continue to suffer from high infant mortality rates of over 100
Indicate whether this statement is true or false.
A trophic cascade is the effect of the loss of ________ on ________
A) producers; the abundance of primary consumers B) detritivores; the abundance of decomposers C) top consumers; the abundance of lower consumers and producers D) top consumers; one another E) flooding; terrestrial ecosystems
Which of the following activates choline to complete the synthesis of phosphatidylcholines?
A) ATP B) CTP C) GTP D) UTP