Which sturcture makes proteins using coded instructions that come from the nucleus?
A. Golgi Apparatus
B. mitochondrion
C. vacuole
D. ribosome
Ans: D. ribosome
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Don’t be alarmed, but you should be aware that right now, there is a species of mites, Demodex folliculorum, living in your eyelashes that are adapted to live on human skin and in human hair follicles, and nowhere else in nature. The good news is that these almost never cause any problems for their human hosts, and most are never even aware that they exist. What type of relationship do your eyelash mites share with you?
a. competitive b. mutualistic c. commensal d. parasitic
How do protists assist termites in digesting wood?
a. They protect the termites’ gut from damage from the cellulose fibers. b. Enzymes produced by the protists break down carbon. c. Protists absorb nutrients from the wood in the termites’ guts. d. Enzymes produced by protists in the termites’ guts break down cellulose.
Which hormone deficiency would lead to a female that is not ovulating?
A. follicle-stimulating hormone B. epinephrine C. cortisol D. testosterone E. calcitonin
A connective tissue differs from an epithelial tissue in that connective tissue
A) is composed of cells supported by a basement membrane. B) can produce and secrete products into the bloodstream. C) is composed of cells that can be described as squamous or cuboidal. D) is composed primarily of a nonliving extracellular material, which is located between the cells. E) is composed of cells interconnected by gap junctions or adhesion junctions.