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
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Which of the following protist groups does NOT include members that move by means of flagella?
a. Rhodophyta b. Excavates c. Alveolates d. Cercozoa e. Heterokonts
The first jawless fishes evolved by about ____ million years ago
a. 120 b. 270 c. 380 d. 480 e. 650
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
Complex carbohydrates are digested to
A. simple sugars. B. amino acids. C. proteins. D. fatty acids.