A ________ is a single unit of the membranous sacs that make up the thylakoid.

Fill in the blank(s) with the appropriate word(s).


Answer: granum

Biology & Microbiology

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Eutherian mammals are uniquely defined by:

A. having a placenta B. longer gestation periods because of more highly developed placentas C. having fur D. the young developing in a pouch E. laying eggs

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The growth rate of a population is expressed as:

a. b ? d. b. i ? e. c. K ? N. d. dN / r. e. (K ? N) / K.

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Polycyclic aromatic hydrocarbons in tobacco smoke are potent carcinogens because they preferentially bind to, and trigger base substitutions, in the

A) Ras gene. B) p53 gene. C) Raf gene. D) PTEN gene. E) EGF receptor gene.

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Just before a duckling was about to hatch, a dog came along and chased the female duck off of the nest. When the duckling hatched it saw the dog. When the dog moved away from the nest, the duckling followed the dog. This is an example of 

A. ethology. B. anthropomorphism. C. imprinting. D. a dumb duck.

Biology & Microbiology