When a plant becomes infected by pathogenic bacteria or fungi, it may respond by way of a fight or
flight response – a defense that cordons off an infection site surrounding it with dead cells.
Indicate whether the statement is true or false.
ANS: F, hypersensitive
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Which one of the following correctly lists components of extracellular matrix found in animals?
A. collagen, laminin, and elastin B. collagen, lignin, laminin, and pectin C. lignin, pectin, and keratin D. cellulose, pectin, lignin
Four of the five answers listed below are characteristic of sclerenchyma cells. Select the exception
a. sclereid b. found in seed coats c. retain the ability to divide at maturity d. have the gritty texture of pear cells e. used in the manufacturing of paper, textiles, and rope
Habitat corridors allow animals to move from one habitat fragment to another
___________________ Indicate whether the statement is true or false.
________ are flat lands surrounding rivers that are covered with nutrient-rich sediments when water overflows the banks
Fill in the blank(s) with correct word