You are observing an organism under the microscope, and it is clearly multicellular with no cell walls.  Your prediction is that this organism is a(n) ________.

A. helminth
B. bacterium
C. alga
D. protozoan
E. fungus


Answer: A

Biology & Microbiology

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The first jawless fishes evolved by about ____ million years ago

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To treat severe combined immunodeficiency (SCID) by gene therapy, a patient’s white blood cells are removed,

followed by the delivery of a normal gene into the cells. The altered cells are then returned to the patient’s body. This is an example of _____ gene therapy. a. enhancement b. germ-line c. viral d. in vivo e. ex vivo

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Complex carbohydrates are digested to 

A. simple sugars. B. amino acids. C. proteins. D. fatty acids.

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