An important component of maintaining a successful aquarium is biological filtration. Bacteria such as Nitrosomonas and Nitrobacter colonize filters and use inorganic salts and inorganic carbon dioxide for their energy needs. Based on this, these bacteria are ____.

Fill in the blank(s) with the appropriate word(s).


autotrophic chemotroph

Biology & Microbiology

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Club mosses

(a) are placed in the subphylum Pterophyta. (b) are so-called because of the social nature of the plants. (c) do not produce gametophytes. (d) are so-called because most produce strobili.

Biology & Microbiology

Which molecules integrate changes outside and inside the cells through communicating changes in the extracellular

matrix to the cytoskeleton?

a. gap junctions and proteoglycans b. collagen and integrin c. fibronectin and collagen d. fibronectin and integrin e. gap junctions and fibronectin

Biology & Microbiology

What structures are found along lymphatic vessels and are heavily clustered in the armpit, groin, and neck?

A. Lymph nodes B. Thymus C. Spleen D. GALT E. Tonsils

Biology & Microbiology

What does it mean for an apicomplexan to have a complex life cycle?

a. require two or more hosts b. have many specialized structures c. never age d. begin with a larval stage

Biology & Microbiology