A zoonosis is an infectious organism in invertebrate animals
a. true
b. false
Ans: b. false
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Which type of lifestyle is demonstrated by bacteria in biofilms?
A. Sessile B. Photoautotrophic C. Planktonic D. Parasitic
Answer the following statements true (T) or false (F)
1. Plant cell membranes contain cholesterol. 2. Diffusion is the movement of a molecule from an area of high to low concentration. 3. Osmosis describes the movement of water from an area of high to low solute concentration. 4. Movement of molecules down their concentration gradient can drive the movement of a different molecule against its concentration gradient.
Which of the following is an example of discounting in neoclassical economics?
A. aesthetic damage B. ignoring the costs of climate change on future generations C. the "invisible hand" D. everyone wants a "piece of the pie", but the "pie" cannot grow infinitely E. biodiversity loss
What is a 15-meter tall tree fern?
A. A gametophyte B. A sporophyte C. Haploid D. Produced by meiosis