Cells require a constant input of energy to

What will be an ideal response?


maintain their structure

Biology & Microbiology

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The virulence of this organism, which causes chancroid, is most likely attributed to:

a. proteases. b. capsular factors. c. hemolysins. d. catalase.

Biology & Microbiology

Which collection of species could form a pioneer community?

a. lichens and mosses b. grasses, wildflowers, and small herbs c. grasses and shrubs d. trees such as aspens, alders, cedars, and firs

Biology & Microbiology

Which of the following is a phagocyte that acts to alert the adaptive immune system of the presence of antigen in solid

tissue?

a. macrophages b. monocytes c. neutrophils d. dendritic cells e. eosinophils

Biology & Microbiology

What is the function of companion cells?

a. These cells provide metabolic support to vessel elements. b. These cells provide metabolic support to sieve elements. c. These cells provide metabolic support to tracheids. d. These cells prevent water from entering the endodermis. e. These cells control the opening and closing of stomata.

Biology & Microbiology