The pink zone of the tropical middle intertdial is characterized by the widespread:
a. irregular worm snails.
b. coralline algae.
c. anemones.
d. keyhole limpets.
e. barnacles.
B
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Distinguish between observational and experimental research
What will be an ideal response?
When Melvin Calvin and Andrew Benson reduced the CO2 available to cells in the photosynthesis
experiments, they discovered that RuBP accumulated. Why did this molecule accumulate?
a. There wasn't sufficient light to drive photosynthesis. b. The cells had too little ATP. c. There were not enough reactants to generate 3PGA. d. The RuBP was defective in structure and unable to form a bond with CO2. e. Rubisco was inhibited by the RuBP excess.
When mangroves and seagrasses are reduced or damaged all occur except:
a. coastal erosion. b. reduction of productivity. c. reduced nursery grounds. d. increased primary production. e. increased sedimentation from land sources transported onto offshore coral reefs.
The gene for Tay-Sachs disease codes for a nonfunctional form of the enzyme hexosaminidase A (or Hex
A). It has been found that a person with only one-third the maximum amount of Hex A can function absolutely normally. Please characterize the heredity of Tay-Sachs disease. A) codominant B) recessive C) dominant D) multiple allelic