The famous pink-colored sand of Bermuda's beaches is due to crushed shells of ________, marine organisms with tests (porous shells) made of organic material hardened by calcium carbonate
A) radiolarians
B) green algae
C) foraminifera
D) lobsters
Answer: C
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An interaction that benefits both participants is called a ____
Fill in the blank with the appropriate word.
Which of the following specialized structures
is NOT correctly paired with a function? a. gullet; ingestion b. cilia; food gathering c. pellicle; digestion d. contractile vacuole; water balance e. pellicle; flexible support
Community ecology is best defined as the study of
A. how groups of species interact in the same place at the same time. B. mutual benefits between organisms at all scales in a region. C. plant distributions in a given region. D. global scale influences of major disturbances such as volcanoes. E. the relationship between abiotic and biotic factors.
Which of the following lipids is the primary component in cell membranes?
A) glycerol B) triglycerides C) steroids D) phospholipids