Which line or lines in the graph represent(s) bags that contain a solution that is hypertonic at 50 minutes?
A) A and B
B) B
C) C
D) D
E) D and E
Answer: B
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Which is not associated with tularemia?
What will be an ideal response?
Xylem sap and soil water differ in _________ because of ___________
A. solute composition; selective uptake by the endodermis B. solute composition; selective uptake by mycorrhizae C. solute composition; selective uptake by the epidermis D. pH; H+ exclusion by the endodermis
Physically, the open ocean is a very stable environment
Indicate whether the statement is true or false
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.