European rabbits were introduced into Australia and quickly spread, reproduced, and became a terrible pest. They eat up to $600 million worth of food and pasture crops annually, and have damaged the populations of many native plants and the populations of animals that eat the plants. Twice in the past 50 years, rabbit diseases have been introduced to try to control the population, with some success. This is a case where ________.
A) an invasive species has caused overharvesting
B) climate change has decreased the genetic diversity of indigenous species
C) an extirpation has occurred
D) an invasive species has reduced the genetic diversity of indigenous species
E) habitat alteration resulted in decreased biodiversity
D
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The process of ________ involves the movement or circulation of a mass or substance
A) convection B) conduction C) radiation
When a new pesticide is developed the best thing to do is to use it
A. Sparingly then liberally to prevent resistance and knock out pests B. Widely and liberally, so pests will not develop a resistance C. Widely and liberally to knock out pests D. Sparingly, so pests will not develop a resistance E. Liberally then sparingly to prevent resistance and knock out pests
________, formed as water evaporates inside small spaces in rock, helps disintegrate desert rocks.
A. Quartz B. Hematite C. Salt D. Ice E. Calcite
Which of the following is not a characteristic of living things?
A. Living things develop and grow. B. Living things convert energy from one form to another. C. Living things allow their internal environments to match conditions in the external environment. D. Living things are part of populations that evolve.