Essentially all exchange of gases and other materials between the circulatory system and tissues of the body or the outside world (e.g., in the lungs) occurs in the
A. veins.
B. capillaries.
C. arteries.
D. heart.
E. lymphatic system.
Answer: B
Biology & Microbiology
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In the early twentieth century, ____ discovered that genes are carried on chromosomes
a. Thomas Hunt Morgan b. Francis Crick c. Gregor Mendel d. James Watson e. Thomas Huxley
Biology & Microbiology
Small circular molecules of DNA in bacteria are called
a. plasmids. b. desmids. c. pili. d. F particles. e. transferrins.
Biology & Microbiology
In pine, there is a dominant ____ generation.
A. sporophyte B. gametophyte C. male gametophyte D. female gametophyte
Biology & Microbiology
Because of the existence of (acute/asymptomatic/passive) carriers, the eradication of meningococcal disease is unlikely
What will be an ideal response?
Biology & Microbiology