Which of the following photosynthetic pigments can be found at the photosystem reaction center?
A) chlorophyll b
B) chlorophyll a
C) a carotenoid
Answer: B
Biology & Microbiology
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The hormone oxytocin affects ____ in many
mammals. a. labor and delivery b. lactation c. pair bonding d. maternal behavior e. all of these
Biology & Microbiology
A(n) ____________________ organism is one that carries a gene that has been transferred to it from another species. Fill in the blank(s) with the appropriate word(s)
Biology & Microbiology
The stage of cellular respiration in which most of the ATP is produced is the citric acid cycle
__________________ Indicate whether the statement is true or false.
Biology & Microbiology
Air enters human lungs from the mouth by passing through the ________.
A. posterior air sacs B. esophagus C. nasal cavities D. trachea E. diaphragm
Biology & Microbiology