What are the smallest (and most distal) structures that remain a component of the conducting zone in the respiratory tract?
A) terminal bronchioles
B) bronchi
C) tertiary bronchioles
D) secondary bronchi
E) respiratory bronchioles
Answer: A) terminal bronchioles
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Protozoa, algae, and fungus are typically found near the surface of soil
Indicate whether this statement is TRUE or FALSE.
In biology lab, you are tasked with measuring the temperature of a small lizard, as it is moved from containers with different temperatures, light, and humidity. These elements require monitoring since lizards cannot self-generate heat. Therefore, lizards are an example of a(n)
A. mesophile. B. thermophile. C. ectotherm. D. amniote. E. endotherm.
Organisms in phylum Thermarchaeota were first identified as distinct from Crenarchaeota when ________.
A. the unique membrane lipid thermarchaeol was discovered in mesophilic ammonia oxidizers B. not all members of the phylum could oxidize ammonia C. all members of the phylum Crenarchaeota were cultured in the laboratory and found to be different D. whole-genome sequences were processed and compared
In pre-mRNA processing, ____
a. exons are spliced out and used to produce ribosomal subunits b. introns are spliced out and combined to form complete proteins c. introns are spliced out and combined in the tRNA d. exons are spliced out and the introns are combined in the mature mRNA e. introns are spliced out and the exons are combined in the mature mRNA