The E. coli that normally live in the human large intestines and produce vitamin K that the body uses would be best termed a ________ relationship.
A. saprobic
B. parasitic
C. commensal
D. mutualistic
Answer: D
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Hemoflagellates cause tropical diseases such as sleeping sickness and Chagas' disease that are ALL transmitted by
A) contact with fecal contaminated soil. B) contact with contaminated water. C) insect vectors. D) sexual contact.
When referring to membrane glycolipids and glycoproteins, the term "glyco-" indicates ____
a. carbohydrate groups are attached to the molecules b. the molecules are bound to the glycocalyx c. the molecules are found on both the interior and exterior of the membrane d. the molecules are attached to the membrane by ionic bonds e. the molecules are rarely found on the membrane exterior
About 80% of all land plants, including grasses, shrubs, and trees, form mycorrhizae. Mycorrrhizae are which of the following?
A. associations between fungi and plant leaves B. associations between fungi and plant roots C. associations between bacteria and plant leaves D. associations between bacteria and plant roots E. associations between bacteria and fungi
Giant kelp is a type of ________ algae.
Fill in the blank(s) with the appropriate word(s).