Scientific Classification & Nomenclature of Plants

Which of the following characteristics does NOT describe the Plant Variety Protection Act?

• Allows breeder to recover the costs of research and development by obtaining exclusive marketing rights

• Requires the plant variety be uniform, stable and distinct from all other varieties

• Allows the patenting of asexually reproduced cultivars

• Provides owner of new plant cultivar with exclusive marketing rights in the United States

Which of the following roles do plants mainly assume in an ecosystem?

• Decomposers

• Consumers

• Carnivores

• Producers

Which of the following best describes decomposers?

• Any organisms which cannot make their own food

• Any organisms which primarily feed on dead organisms or waste from living organisms

• Any organisms which can make their own food

• Include herbivores, omnivores and carnivores

Which of the following is NOT a characteristic of weeds?

• Dependent on humans for propagation

• Rapid population establishment

• Abundant seed production and seed dormancy

• Adaptation for seed dispersal

Which of the following is NOT an advantage of weeds?

• Provide habitat and feed for wildlife

• Soil stabilization

• Increase crop yields

• Add organic matter to soil