Besides neurons, what cells are found in nervous tissue?
a. glial cells
b. mucous cells
c. squamous cells
d. secreting cells
Answer: a. glial cells
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How many different codons are part of the genetic code?
a. 4 b. 16 c. 32 d. 64 e. 128
Which of the following statements about plant macronutrients is/are true? (Check all that apply.)A) They approach or exceed 1% of a healthy plant's dry weight.B) They reduce the need for CO2 during photosynthesis.C) A deficiency in any one can have severe effects on a plant's growth.D) The amount of a macronutrient needed by a plant can be assessed by growing plants in hydroponic solutions.
What will be an ideal response?
An ideal vector
A. may be a plasmid or bacteriophage. B. has a restriction enzyme recognition site. C. contains an origin of replication. D. contains a selectable marker. E. All of the choices are correct.
What organic compound makes up 25% of the secondary walls of cells of older stems and roots?
a. Cellulose b. Glycogen c. Glucose d. Lignin e. Starch