FUNDAMENTALS OF COMPUTER

BASIC COMPUTER CONCEPTS

IMPACT OF COMPUTERS ON WORK ENVIRONMENTS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Coral reefs are some of the most diverse and valuable ecosystems on Earth. This biodiversity is considered key to finding new medicines for the 21st century. Many drugs are now being developed from coral reef animals and plants as possible cures for cancer, arthritis, human bacterial infections, viruses, and other diseases. Which of these is an ecological consideration in the establishment of marine preserves?
A
protecting the reef systems to preserve marine biodiversity
B
balancing the number of visitors to Florida Key reefs systems to ensure profit with minimal habitat destruction
C
maintaining viable population levels for fish and shellfish most frequently sold for human consumption
D
limiting the number of fish caught per day so the sports fishing industry will be self-sustaining
Explanation: 

Detailed explanation-1: -The variety of species living on a coral reef is greater than in any other shallow-water marine ecosystem, making reefs one of the most diverse ecosystems on the planet. Covering less than one percent of the ocean floor, coral reefs support an estimated 25 percent of all known marine species.

Detailed explanation-2: -Coral reefs provide an important ecosystem for life underwater, protect coastal areas by reducing the power of waves hitting the coast, and provide a crucial source of income for millions of people. Coral reefs teem with diverse life. Thousands of species can be found living on one reef.

Detailed explanation-3: -Coral reefs are widely regarded as some of the most biodiverse and productive ecosystems on Earth (Reaka-Kudla, 1997; Small et al., 1998; Knowlton and Jackson, 2001).

Detailed explanation-4: -The antiviral drugs Ara-A and AZT and the anticancer agent Ara-C, developed from extracts of sponges found on a Caribbean reef, were among the earliest modern medicines obtained from coral reefs.

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