The scarcity of which two elements limits plant growth?
A. nitrogen, phosphorus
B. oxygen, nitrogen
C. oxygen, phosphorus
D. carbon, phosphorus
E. carbon, nitrogen
Answer: A
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What are the projections on epithelial tissue
found in the upper airways that will help move mucus?
a. cilia b. microvilli c. flagella d. pseudopodia e. none of these
When does a cell regulate gene expression?
A. Pretranscription through pretranslation B. Pretranscription through posttranslation C. Posttranscription through posttranslation D. Posttranscription through pretranslation
Results are easily contaminated by tap water:
a) Kinyoun b) Auramine-rhodamine c) both d) neither
The ordering of bases in a gene determines the order of:
A) mRNAs on a ribosome. B) genes on a chromosome. C) amino acids in a protein. D) genes in a genome.