In any physical or chemical change, energy cannot be created or destroyed. This is the ________ law of thermodynamics
Fill in the blank with correct word.
Answer: first
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Which statement regarding porphyrin synthesis pathways is CORRECT?
A. The succinyl-CoA/glycine porphyrin pathway is used by all bacteria, photosynthetic eukaryotes, and archaea. B. The porphyrin biosynthetic pathways are unified at the step of 5-aminolevulinic acid. C. The glutamate porphyrin pathway is used by all non-photosynthetic eukaryotes and alpha-proteobacteria. D. There is very little conservation of porphyrin synthesis pathways between eukaryotes, bacteria, and archaea.
Sex chromosomes do all of the following EXCEPT
a. determine gender. b. vary from one sex to another. c. carry some genes that have nothing to do with sex. d. appear in a diploid cell as either XX or XY. e. appear in a haploid cell as either XX or XY.
By what method is T-DNA integrated into the plant genome?
What will be an ideal response?
The Plasmodium parasite is transmitted by:
a. tainted food. b. sneezing. c. wind. d. mosquitoes.