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).
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Swelling, redness, heat, and pain are all manifestations of:
a. nosocomial infection. b. inflammation. c. bacterial colonization. d. coagulation.
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
Which of the following elements is considered an essential micronutrient for plants?
a. calcium b. lithium c. sulfur d. nickel e. oxygen
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