Simple ________ epithelial cells are most commonly associated with absorption in digestive organs especially the small intestine
Fill in the blank(s) with correct word
columnar
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The biggest limitation of traditional light microscopy and electron microscopy methods is that they are unable to reveal
A) absolute cell concentration. B) cellular components of small microbes because of the limits of magnification. C) genetic and functional diversity of microorganisms in the habitat under study. D) physical microbial interactions as found in nature.
Once an amino acid has been attached to the appropriate tRNA, the tRNA is called a(n) ________, and the amino acid is said to be ________
Fill in the blank with correct word.
The gamma motor neuron maintains appropriate tension within the muscle spindle, allowing it to remain sensitive to changes in length and velocity.
a. true b. false
Superantigens
a. activate more T cells than normal. b. activate more B cells than normal. c. bind to MHC molecules outside of the normal antigen binding site. d. do all of the above. e. are characterized by a and c.