The walls of the descending limb of the loop of Henle are relatively permeable to sodium
____________________ Indicate whether the statement is true or false.
F, water
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Which of the following targets is NOT regulated by the autonomic nervous system?
A. skeletal muscles B. cardiac muscles C. glands of the body D. smooth muscles E. none of these
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 describes the termination of transcription in prokaryotes?
A) RNA polymerase transcribes through the polyadenylation signal, causing proteins to associate with the transcript and cut it free from the polymerase. B) RNA polymerase transcribes through the terminator sequence, causing the polymerase to separate from the DNA and release the transcript. C) Once transcription has initiated, RNA polymerase transcribes until it reaches the end of the chromosome. D) RNA polymerase transcribes through a stop codon, causing the polymerase to stop advancing through the gene and release the mRNA.
In the lineage of plants, the transitions below have occurred. What is the correct order of these transitions? A. engulfing of cyanobacterium B. engulfing of bacteria C. fusion of an archaea and bacteria
a. A, B, C b. B, C, A c. C, A, B d. C, B, A e. A, C, B