The structure that helps neurons transmit action potentials more quickly is a

A) dendrite.
B) cell body.
C) synapse.
D) myelin sheath.


D

Environmental & Atmospheric Sciences

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In the tropics, the noon sun is always high in the sky; therefore, diurnal and seasonal changes in temperature are small

Indicate whether the statement is true or false

Environmental & Atmospheric Sciences

What is cultural syncretism?

A) the blending of cultural forces to create a new, synergistic form of culture B) the adoption of popular culture by a local ethnic group C) the replacement of local cultural traditions with popular culture D) the rejection of popular culture by a local ethnic group E) the elimination of local cultures caused by the spread of popular culture

Environmental & Atmospheric Sciences

Iron and aluminum would be most mobile in which situation?

a. the A horizon of a desert soil b. the A horizon of a forested temperate-climate soil c. the B horizon of a tropical rain-forest soil d. the C horizon of a prairie-grassland soil

Environmental & Atmospheric Sciences

Which of the following have been associated with prolonged treatment with drugs such as Premarin or Provera?

A) an increased risk of breast cancer B) an increased risk of uterine cancer C) both a and b D) neither a nor b

Environmental & Atmospheric Sciences