Which of the following controls the distribution of
blood?
a. arteries
b. arterioles
c. capillaries
d. venules
e. veins
Answer: b
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Gap genes and pair-rule genes are examples of genes that determine _____
A. the formation of body segments B. the formation of the primary cell layers C. the formation of cellular adhesion D. the formation of the major body axis
Dalton’s law of partial pressures states that the total pressure of a mixture of gases is equal to the sum
of the pressures of the individual gases. ____________________ Indicate whether the statement is true or false.
Which of the following is a feature of plant cell division that distinguishes it from animal cell division?
A) formation of a cell plate B) formation of a cleavage furrow C) lack of cytokinesis D) production of four (rather than two) new cells per mitotic division
Lyme disease is caused by a bacterium found in the bloodstream of small woodland rodents such as mice or chipmunks and also found occasionally in deer. Yet humans get this disease without coming into direct contact with either rodents or deer. Explain
the concept of a biological vector, and discuss how humans contract Lyme disease. What will be an ideal response?