When communities of organisms interact with their physical environment they form a(n)
A. population.
B. organism.
C. community.
D. ecosystem.
E. macromolecular community.
Answer: D
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All of the following diseases are classified as ciliopathies except
A) Kartagener's triad. B) Bardet?Bieldl syndrome. C) Meckel?Gruber syndrome. D) Griscelli's disease. E) polycystic kidney disease.
The mature male gametophyte is produced
A. in the anther. B. within the pollen granule during transfer. C. when the pollen makes contact with the stigma. D. in the pollen tube when the generative cell divides. E. within the ovule just prior to fertilization.
What mutations occurred in typical icefish that prevented production of hemoglobin?
A. fragmentation of both the alpha and beta genes B. deletion of the alpha gene and fragmentation of the beta gene C. deletion of both the alpha and beta genes D. fragmentation of the alpha gene and deletion of the beta gene E. destruction of red blood cells in the bone marrow
Protozoa are susceptible to viral attack.
Answer the following statement true (T) or false (F)