Concentric rings found in the cross section of the wood of trees are known as:
a. summer rings.
b. spring rings.
c. annual rings.
d. dendrochrons.
e. pith rings
c
Biology & Microbiology
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What type of pathogen is targeted by a cytotoxic T cell?
A. an encapsulated bacteria B. an opsinized pathogen C. a virus-infected host cell D. All of the answer options are correct.
Biology & Microbiology
When one portion of a chromosome becomes physically part of another chromosome, the type of mutation is referred to as a(n)
A) nonsense mutation. B) inversion. C) translocation. D) duplication. E) nonstop mutation.
Biology & Microbiology
The greatest volume of blood is found in the
a. aorta and arteries. b. capillaries. c. veins. d. lungs. e. heart.
Biology & Microbiology
Small, hydrophobic molecules pass through a cell membrane most easily by diffusion
Indicate whether the statement is true or false
Biology & Microbiology