Which of the following is TRUE of the September equinox?
A) The subsolar point is at the Tropic of Capricorn (23.5 S).
B) The Northern Hemisphere spring officially begins.
C) The subsolar point is at the Tropic of Cancer (23.5 N).
D) The sun rises at the South Pole, where it will remain over the horizon for the following six months.
E) All latitudes on Earth, except the Equator, experience unequal daylengths.
Question 2
A black walnut (Juglans nigra) emits a chemical that may kill or inhibit the growth of other nearby shrubs or trees without harming itself. This is an example of which symbiotic relationship?
A) Parasitism B) Mutualism C) Commensalism D) Amensalism
true story
Decimal Point Place Values
Equinoxes: March 21 and September 21
Common trigger point locations, anterior and posterior.
Two-point discrimination
Anterosuperior view of true pelvis (blue)