Fibrous structural proteins of the extracellular matrix are embedded in gels formed from polysaccharides called

a. elastin.
b. fibronectin.
c. glycosaminoglycans (GAGs).
d. laminin.


Ans: c. glycosaminoglycans (GAGs).

Biology & Microbiology

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Swelling, redness, heat, and pain are all manifestations of:

a. nosocomial infection. b. inflammation. c. bacterial colonization. d. coagulation.

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The growth of a new plant on the margin of a leaf that eventually falls to the ground and grows independently is an

example of ____.

a. fragmentation b. protoplast fusion c. somaclonal selection d. grafting e. apomixes

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Which of the following elements is considered an essential micronutrient for plants?

a. calcium b. lithium c. sulfur d. nickel e. oxygen

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A female bowerbird being unable to recognize

the mating ritual of a male toucan is an example of what type of isolating mechanism?

a. genetic b. ecological c. behavioral d. mechanical e. temporal

Biology & Microbiology