When studying ecosystems, ecologists sometimes choose to partition a part of a natural ecosystem to study. What is this called?
a. microcosm
b. annexation
c. mesocosm
d. truncation
c. mesocosm
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Match the kind of plastid with its function.
A) chromosome movement B) flower color C) plastid precursor D) nucleic acid production E) lipid storage F) starch storage G) protein production H) chloride storage I) photosynthesis J) protein storage 1) proplastid 2) amyloplast 3) chloroplast 4) chromoplast 5) elaioplast
As electrons move along the electron transport chain, they lose potential energy. How is the energy that is released used by the cell?
A. The energy is used to transport protons against their concentration gradient B. The energy is used to pump electrons along the electron transport chain C. The energy is used to pump NAD+ into the cytoplasm so it can be used in glycolysis D. The energy is converted directly into ATP
Which of the following organisms would most likely produce asexually?
A. a worker honeybee B. a lizard in an equatorial desert C. a mammal in a temperate forest D. a bird in an urban environment
Prion diseases can be acquired via all of the following EXCEPT
a) ingestion. b) inhalation. c) contaminated surgical instruments. d) transplanted nerve tissue.