____ is the molecule that carries information from the cell nucleus out into the cell where specific proteins are made from the information
a. An enzyme
b. DNA
c. RNA
d. ALH84001
e. PAH
C
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The age of the solar system is believed to be approximately 4.6 billion years based on the data from
a. samples of lunar rocks. b. samples of Earth rocks. c. samples of meteorites. d. samples of lunar rocks, Earth rocks, and meteorites. e. None of the other choices are correct.
Conversion of Units: A spherical fruit has a radius of 3.23 cm. What is the volume of the fruit in cubic meters?
A. 1.41 × 10-4 m3 B. 1.41 m3 C. 4.23 × 10-4 m3 D. 4.23 m3
Brick A is dropped from the top of a building. Brick B is thrown straight down from the same building. Neglect air. Which statement about their accelerations is correct?
A) The acceleration of A is greater than the acceleration of B. B) The acceleration of B is greater than the acceleration of A. C) The two bricks have exactly the same acceleration. D) Neither brick has any acceleration once it is released.
Linear momentum is conserved in
a. an inelastic collision b. an elastic collision c. any collision where two objects rebound off each other d. none of the above