Parasitism is often a ____________ factor affecting populations.
A. density-independent
B. density-dependent
C. inverse density-dependent
D. cyclic
E. random
B. density-dependent
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When a person visits the doctor with a bacterial infection, one of the first lab tests on the patient will tell the doctor whether the bacteria are gram-negative or gram-positive. Why is this important information for a doctor to have before deciding on treatment?
What will be an ideal response?
The healthiest carbohydrates are
a. simple sugars. b. disaccharides. c. fruit sugars. d. "complex" carbohydrates e. cane sugars.
For translation to take place, which of the following does NOT need to be present?
A. ribosome B. DNA C. rRNA D. mRNA E. tRNA-amino acid complex
Organisms that are unicellular, colonial, filamentous, and photosynthetic would include the
A) fungi. B) protozoans. C) helminths. D) algae.