Blood pressure is greatest in the ____
a. arterioles
b. arteries
c. capillaries
d. veins
e. venules
ANSWER: b
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Answer the following statements true (T) or false (F)
1. Studies by Avery, MacLeod, and McCarty with different strains of bacteria and those by Hershey and Chase with T2 bacteriophage determined that proteins are highly complex molecules that form the genetic material for bacteria and viruses. 2. A strand of DNA is composed of nucleotide bases, sulfate groups, and sugars. 3. When considering the complexity of genetic material, multiple genes are found within a chromosome. 4. If there is 28% adenine, then there must be 28% cytosine for the DNA composition of a particular organism. 5. DNA is a double helix structure whose strands are held together by hydrogen bonds with A to T and C to G base pairing.
Which of the following organs of the digestive system is different from the other four because it does
NOT produce any secretions that aid in the digestive process? a. stomach b. liver c. esophagus d. pancreas e. salivary gland
When mRNA leaves the cell's nucleus, it next becomes associated with
A. proteins. B. endoplasmic reticulum. C. tRNA. D. a ribosome.
You grow pea plants in eight different treatment scenarios. You record each plant's growth, and then calculate the average growth of the plants for each treatment. Which type graph would display this information best?
A. Bar graph B. Line graph C. Pie chart D. Scatter plot