Answer the following questions true (T) or false (F)
1. Lazzaro Spallanzani was the first scientist to provide evidence disproving the spontaneous generation of microorganisms.
2. The smallest chemical units of matter are elements.
3. The side groups of amino acids can interact with each other and with other molecules.
1. TRUE
2. FALSE
3. TRUE
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Similarity in evolutionarily unrelated groups due to adaptation to similar environments is called
A. concentric evolution. B. convergent evolution. C. biogeographic evolution. D. Hardy-Weinberg equilibrium.
Which two producers will dominate a coniferous forest at the higher elevations?
a. Spruce and firs b. Spruce and pines c. Spruce and mosses d. Lichens and firs e. Firs and pines
Which of the following statements best explains why there are fewer colonies on plate IV than on plate III?
(A) Plate IV is the positive control. (B) Not all E. coli cells are successfully transformed. (C) The bacteria on plate III did not mutate. (D) The plasmid inhibits E. coli growth.
The cohesion-tension theory explains the role of ________ in long-distance water transport.
A. surface tension B. sap movement C. transpiration D. membranes E. plasmodesmata