What type of connective tissue is able to withstand stretching in any direction and consists of fibroblasts interspersed among a tight mesh of randomly arranged collagen fibers?
a. loose connective tissue
b. dense regular connective tissue
c. dense irregular connective tissue
d. cartilage
e. bone
c
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The two amino acids depicted above both have side groups (R groups) that are
a. acidic and polar. b. uncharged and nonpolar. c. basic and polar. d. positively and negatively charged and nonpolar. e. uncharged and polar.
Which of the lakes in the accompanying figure may experience turnover?
a. 2 and 4
b. 2 and 3
c. 3 and 4
d. 1 and 2
e. 1 and 3
Which example does not include a case of phenotypic variance?
A. A population of finches has their bill size increased by directional selection B. A population of humans in which individuals differ in height C. A population of bacteria is polymorphic for a single nucleotide polymorphism that resulted from a synonymous mutation D. A genetically uniform population of barnacles express more muscular reproductive organs in wavy environments E. A population of garter snakes with several color patterns use different escape behaviors
Given the sentence "THE FAT CAT ATE THE RED RAT," which of the following would represent a frameshift mutation?
A. THE FAC ATA TET HER EDR AT B. THE CAT ATE THE RED RAT C. THE FAT CAT ATE THE RED RAT D. THE FAT RAT ATE THE RED CAT