Bilateria are characterized by
A. a plane of symmetry that forms mirror images around any plane through the longitudinal midline of the body.
B. a plane of symmetry around a transverse plane across the center of the body so that the front and back halves are mirror images.
C. a plane of symmetry that forms mirror images around a vertical plane in the midline.
D. a plane of symmetry that forms mirror images around an oblique plane in the midline.
E. a plane of symmetry that forms mirror images around a horizontal plane in the midline.
Answer: C
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With regard to mitochondrial DNA:
A. Each mitochondrion has only one, circular DNA. B. The mitochondrial DNA molecule of animals is larger than that of plants. C. Each mitochondrion has multiple, circular DNAs. D. The nucleic acid in mitochondria is actually RNA. E. Mitochondrial DNA codes for 95% of the proteins needed in the mitochondria.
Frequently a critical component in the medium, often the carbon source, is added ________ so that the microorganisms will not have excess substrate available at any given time.
A. sporadically B. gradually C. continuously D. None of these choices are correct.
A cerebral embolism blocks an artery carrying blood to the ________
Fill in the blank(s) with correct word
Botox is the marketed version of the botulism exotoxin, used to treat muscle spasms and for cosmetic purposes. Indicate whether the statement is true or false