The semi major axis of an ellipse is
a. the ratio of the longest diameter of the ellipse to that of the shortest diameter of the ellipse.
b. half the length of the shortest diameter of the ellipse.
c. half the length of the longest diameter of the ellipse.
d. the distance between the two foci of the ellipse.
e. the ratio of the distance between the two foci to the length of half the longest diameter of the ellipse.
Question 2
The free-fall contraction of a molecular cloud
a. can be initiated by shock waves from supernovae.
b. can be initiated by nearby spectral type G stars.
c. can be initiated by the rotation of the cloud.
d. causes the cloud to become transparent to ultraviolet radiation.
e. causes the particles in the cloud to decrease the speed with which they move.
On average, the ratio of carbon to nitrogen is much higher in terrestrial plants than in other major
Summary of major brain structures.
Major control mechanisms affecting glycolysis and gluconeogenesis
Mixed dishes such as hamburgers and pizza are a major source of solid fats in the diets of Americans
Superior view of axis and right lateral view of axis
Male to Female Sex Ratio at Birth vs. PCB Concentration in Maternal Serum