The term "paracrine signaling" refers to
a. signaling between cells located far from each other.
b. stimulation of a cell by substances produced by the cell itself.
c. signaling between cells located close to each other.
d. signaling between parenchyma cells.
Answer: c. signaling between cells located close to each other.
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A woman who has blood type A, has a daughter who is type O positive and a son who is type B negative. Rh positive is a simple dominant trait over Rh negative.Which of the following is a possible genotype for the mother?
A) IAIA B) IBIB C) ii D) IAi E) IAIB
Which is NOT a component of a Gram-Negative bacterium's wall?
A. peptidoglycan B. teichoic acid C. N-acetylmuramic acid D. diaminopimelic acid E. N-acetylglucosamine
Why do slime molds represent a transitional life-form?
What will be an ideal response?