Which of the following components of the human eye forms the iris?
What will be an ideal response?
choroid
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You are given an unknown organism to identify. It is unicellular and heterotrophic
It is motile, using many short extensions of the cytoplasm, each featuring the 9 + 2 filament pattern. It has well-developed organelles and two nuclei, one large and one small. This organism is most likely to be a _____. A) foraminiferan B) radiolarian C) ciliate D) kinetoplastid E) slime mold
By definition, a nerve is
1.a bundle of axons. 2.a single extension of a neuron. 3.the same as a neuron within the central nervous system. 4.a dendrite. 5.a fiber more than 10 inches in length.
The covalent bonds connecting monomer units in sugars can be formed by the removal of a water molecule. This reaction is referred to as:
A. a dehydration reaction. B. a hydration reaction. C. a hydrolysis reaction. D. an oxidation-reduction reaction.
In what way are bacteriorhodopsin and chlorophyll similar?
a. They are both found in archaea. b. They both capture photons of light. c. They are both found in protists. d. They are both found in plants.