Which of the following best describes natural selection?
A) It is the idea that organisms with genetic traits that improve their ability to reproduce are more likely to pass those traits on to future generations.
B) It is the idea that the strong survive and the weak die off.
C) It is a guess made by scientists about how life develops, but it has no hard evidence to support it.
D) It is the idea that organisms naturally increase in complexity and intelligence with time.
A) It is the idea that organisms with genetic traits that improve their ability to reproduce are more likely to pass those traits on to future generations.
You might also like to view...
How does the spectrum of a star depend on its surface temperature?
A. The cooler the star, the more molecular absorption bands will be present in its spectrum. B. Hot stars and cool stars can both have weak hydrogen lines. C. The hotter the star, the more colors will be present in its continuous spectrum. D. All of these choices are correct. E. None of these choices are correct.
A container having a volume of 1.0 m3 holds 5.0 moles of helium gas at 50°C. If the helium behaves like an ideal gas, the average kinetic energy per molecule is
a. 6.7 × 10^?20 J. b. 1.0 × 10^?21 J. c. 1.0 × 10^?20 J. d. 6.7 × 10^?21 J. e. 1.3 × 10^?20 J.
To be dimensionally consistent, velocity [L/T], force 
mass [M], and length [L] must be related as follows.
A. 
B. 
C. 
D. velocity = force length/mass
In the novel Contact by Carl Sagan, an extremely advanced civilization has constructed a labyrinth of wormholes throughout the galaxy. A civilization capable of such a feat would most likely be classified as what kind of civilization?
A) Type III B) Type II C) Type IV D) Type I