The Herschels' grindstone model of the Milky Way star system was too small because
a. they did not count the brightest stars.
b. they did not study the southern sky.
c. they did not have large enough telescopes.
d. they only observed stars in the disk of the galaxy and not the halo.
e. they did not know about interstellar dust clouds.
Question 2
Convection is important in stars because it
a. increases the temperature of the star.
b. mixes the gases of the star.
c. transports energy outward in the star.
d. carries the neutrinos to the surface of the star where they can escape.
e. mixes the gases of the star and transports the energy outward in the star.
The logistic growth model does not describe all populations.
(a) The relative age ranges of different dating techniques depend upon the half-life of the system u
Villi and microvilli of the small intestine: (a) Tablet dissolves in the stomach. (b) Medication ...
A central port fuel-injection system.
Development of the Integumentary System
Female Reproductive System (Illustrated)