Which of the following is not a lymphatic organ?
A. red bone marrow
B. tonsil
C. liver
D. thymus
E. spleen
Answer: C
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Mimivirus contains some of the genes required for protein synthesis. This is cited as support for which hypothesis about the origins of viruses?
A) degeneration B) origin of life C) escaped-genes D) transposable elements
How did the evolution of the jaw contribute to diversification of early vertebrate lineages?
A) It allowed for smaller body size. B) It was the first stage in the development of a bony skull. C) It paved the way for the evolution of the pharyngeal jaw. D) It made additional food sources available. E) It increased the surface area for respiration and feeding.
Early successional species are referred to as ________ species
Fill in the blank(s) with correct word
The ________ function to support, insulate, and protect neurons
Fill in the blank(s) with correct word