The quantity of available nutrients _____ from the lower levels of the energy pyramid to the higher ones.
a) increases
b) decreases
c) remains stable
d) cycles
Answer: b) decreases
You might also like to view...
A closed-circular DNA in its relaxed form has a linking number (Lk) of 500 . What will happen to the linking number of this molecule if DNA gyrase and ATP are added to this DNA?
A. Lk will increase. B. Lk will decrease. C. Lk will stay the same. D. Lk becomes undefined. E. None of these choices is correct.
As pyruvate is prepared for the TCA cycle, it undergoes a process of
A) reductive carboxylation. B) oxidative decarboxylation. C) oxidative carboxylation. D) reductive decarboxylation. E) CoQ reproduction.
Studies of the immune response to an infection caused by microorganisms would be performed by a(n) ________.
A. epidemiologist B. immunologist C. geomicrobiologist D. hypersensitivity specialist
Which of the following must occur in order for a photon to excite an electron in a pigment molecule?
a. The photon must match the energy difference between the ground state and one of the excited states. b. The photon must have lower energy than the electron at the ground state. c. The photon must have lower energy than the energy of the electron at the excited state. d. The photon must have higher energy than the electron at the ground state.