A mechanism shared by both extracellular and intracellular digestion is

A. the ability to phagocytose food particles.
B. a slow speed of digestion.
C. the presence of a digestive cavity.
D. the ability to consume both large and small food items.


A. the ability to phagocytose food particles.

Biology & Microbiology

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Which of the following antibiotics specifically inhibits DNA synthesis?

A. Tetracycline B. Quinolones C. Polymyxin B D. Gentamycin

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Which of the following is NOT a principle used when analyzing cladograms?

A. All species, or higher taxa, are placed on tips in a phylogenetic tree. B. All species, or higher taxa, are placed on nodes in a phylogenetic tree. C. Each cladogram branch point should have one or more shared derived characters that are common to all species above the branch point, unless the character is later modified. D. All shared derived characters appear together only once in a cladogram unless they arose independently during evolution more than once. E. All species, or higher taxa, are placed on tips in a phylogenetic tree and all shared derived characters appear together only once in a cladogram unless they arose independently during evolution more than once.

Biology & Microbiology

The number of proteins produced by the human genome is significantly less than the number of genes

it contains. Indicate whether the statement is true or false.

Biology & Microbiology

Endocytic events ________.

A. remove membrane from the cell surface B. have no effect on the plasma membrane C. change the membrane composition D. add membrane to the cell surface

Biology & Microbiology