Which of the following statements about animal connective tissues is TRUE? a) Keratin filaments secreted into the extracellular matrix are important for providing mechanical strength to connective tissues. b) Enzymes embedded in the plasma membrane synthesize the collagen in the extracellular matrix. Cells can move through connective tissue via interactions between extracellular matrix proteins, integral membrane proteins and actin filaments within the cell. d) Hemicellulose and pectins allow these tissues to resist compression. e) both a and c are true.

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Defense Mechanism

Circumstances influence and compel people to behave in a certain way. One such behavior is a defense mechanism. It is employed by people to escape from unpleasant circumstances, thoughts and actions. Defense mechanisms are, thus, psychological strategies that help to avert and avoid unwanted feelings such as guilt or shame and situations such as threat and danger.