Which of the following structures are responsible for the shape of a cell?

a. cell junctions
b. microvilli
c. cytoskeleton
d. organelles


Ans: c. cytoskeleton

Biology & Microbiology

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Identify the structure indicated by #1:

A. uterus B. cervix C. vagina D. ovary E. fallopian tube or oviduct

Biology & Microbiology

What type of cell activates a B cell?

a. neutrophil b. basophil c. T helper cell d. cytotoxic T cell

Biology & Microbiology

Male peacocks having more ornate plumage than their female counterparts is an example of which of the following features of ecological behavior?

a. monogamy b. sexual dimorphism c. sexual selection d. territoriality

Biology & Microbiology

If reinforcers from one unchanged source are depleted and responding in another source increases, we call this

a. Negative contrast b. Substitutability c. Positive Contrast d. Anticipatory Contrast

Biology & Microbiology