Which law of thermodynamics explains the fact that we must eat to gain the energy to perform the functions of life, such as breathing?
A) fifth law B) third law C) first law D) second law E) fourth law
Answer: C
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Thomas Malthus proposed that
a. the food supply increased faster than the population. b. the population increased faster than the food supply. c. the food supply and population increased at the same rate. d. artificial selection was the key to evolution. e. natural selection was the key to evolution
____ is believed to be produced in the leaves and transported to the phloem in the shoot apical meristem
a. Jasmonic acid b. Florigen c. Brassinosteroid d. Abscisic acid e. Ethylene
vitamins which are fat soluable
What will be an ideal response?
The most significant cells in graft rejection are
A. natural killer (NK) cells. B. suppressor T-cells. C. cytotoxic T-cells. D. helper T-cells. E. B-cells.