The photo at right shows the result of mixing part of a banana with detergent and salt and then layering ice-cold ethanol on top of the mixture. What is the composition of the material containing all the bubbles?
What will be an ideal response?
DNA is mixed in amongst the bubbles.
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Blood flow through most organs in the systemic circuit is regulated primarily by increasing or decreasing the ________ activity to arteriolar smooth muscles in the organ. Another form of regulation, called ________, depends upon the metabolic activity of the organ. Increased activity leads to increased interstitial fluid metabolites, which cause ________ of the arterioles. The former is a type of ________ regulation of blood flow; the latter is an example of ________ regulation.
A. sympathetic; active hyperemia; dilation; extrinsic; intrinsic B. parasympathetic; reactive hyperemia; dilation; extrinsic; intrinsic C. parasympathetic; active hyperemia; constriction; extrinsic; intrinsic D. sympathetic; reactive hyperemia; dilation; intrinsic; extrinsic E. sympathetic; flow autoregulation; constriction; intrinsic; extrinsic
Carbonic anhydrase catalyzes a reaction that combines which of the following?
A. CO2 and O2 B. H2O and CO C. H2O and CO2 D. H2O and O2 E. H+ and HCO3-
The period of development during which the contents of a zygote are divided into increasingly smaller cells is called ________.
Fill in the blank(s) with the appropriate word(s).
Air flow through the smaller bronchioles can be adjusted by varying the contractile activity of the smooth muscle within their walls
Indicate whether the statement is true or false