Which of the following is the layer of the meninges that has direct contact with the brain?
A) arachnoid mater
B) geezin mater
C) pia mater
D) dura mater
E) dinan mater
Answer: C
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Which of the following is NOT found in white
muscle fibers?
a. stored ATP b. creatine phosphate c. myoglobin d. hemoglobin e. more than one of these
An ecologist studying effects of bees on seed production by flowering plants is working at which level of ecological complexity?
What will be an ideal response?
Gap junctions ____
a. seal the spaces between cells b. allow ions and small molecules to pass between cells c. allow plant cells to communicate with each other d. give the cell its shape e. anchor the cell membrane to the cell wall
A plant species has its DNA analyzed. The results show that 28% of its nitrogen bases are guanine. What is the percent represented by thymine?
A. 22% B. 28% C. 56% D. 23%