Multicellularity is a trait that has evolved independently in
A. animals
B. plants
C. fungi
D. all of the above
Ans: D. all of the above
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The 140 kbp genome containing many short repeats, ribosomal RNA genes, one RNA polymerase gene (rpo) and one RubisCO gene (rbcL) is most likely from a(n)
A) plant. B) autotrophic bacterium. C) chloroplast. D) autotrophic archaeon.
Studies have determined that ____ is not responsible for the cyclical rise and fall of arctic hare and lynx populations
a. predation b. a limited food supply for hares c. predation by other mammals d. intraspecies competition e. disease
Parapodia are characteristic of oligochaetes. Indicate whether the statement is true or false
An agricultural worker experiences difficulty breathing which becomes progressively worse. Tests show inflammation and damage of the lung tissue, but IgE antibodies and granulocytes are in the normal ranges. With which disorder of the immune system are these signs and symptoms consistent?
A. allergic reaction B. type III (immune complex-mediated) hypersensitivity C. type IV (delayed) hypersensitivity D. autoimmunity E. acquired immunodeficiency