DNA molecules contain patterns for the production of
a. proteins.
b. amino acids.
c. phosphates and sugars.
d. four kinds of bases.
e. all of the above
A
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An interferometer consists of maximum of two telescopes connected to each other
Indicate whether the statement is true or false
________ are great wrinkle marks on Mercury's crust, due to its core contracting
A) Rilles B) Chaotic terrain C) Hollows D) Scarps E) Craters
Which of the following limit the ultimate world population?
a. The size of Earth b. The energy coming to Earth from the Sun c. The amount of land mass d. The amount of food available e. All of the above are limits to world population.
Simple Pendulum: A pendulum of length L is suspended from the ceiling of an elevator. When the elevator is at rest the period of the pendulum is T. How would the period of the pendulum change if the supporting chain were to break, putting the elevator into freefall?
A. The period does not change. B. The period increases slightly. C. The period decreases slightly. D. The period becomes zero. E. The period becomes infinite because the pendulum would not swing.