What causes the "pulling" of a water column from the soil to the leaves?
A) hydrogen bonds
B) gravity
C) hardiness
D) active transport
A
Biology & Microbiology
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Which of the following statements about eukaryotic gene expression is true?
a. Transcription occurs only within the nucleus. b. Transcription occurs after protein translation. c. Translation occurs in the nucleolus. d. Ribosomes translate tRNA into protein.
Biology & Microbiology
At rest, veins hold about ____ percent of the body’s blood
a. 40 b. 50 c. 60 d. 70 e. 80
Biology & Microbiology
Some cancers can be considered to be multifactorial since both genes and environment are involved in
their expression. Indicate whether the statement is true or false.
Biology & Microbiology
What are the principal structural components of cilia and flagella?
a. intermediate filaments b. myosin microfilaments c. actin microfilaments d. microtubules
Biology & Microbiology