Being listed as an endangered species can have negative EFFECT since it could make a species more desirable for collectors and poachers. a. awareness b. preservation c. support d. impact

Probability of extinction depends _______ both the population size and fine details of the population demography. a. on b. in c. from d. for

_______ is a branch of Natural Science, and is the study of living organisms and how they interact with their environment. a. Biology b. Biological c. Biologist d. Biologically

I was reading the book last night before I went to bed. I never took it out of this room. It ____ be lying around here somewhere. Where ___ it be? a. might / needn't b. can / should c. shouldn't / may d. must / can

She ___ be ill. I have just seen her playing basketball in the school yard. a. needn't b. shouldn't c. mustn't d. can't

Known worldwide by its panda logo, World Wildlife Fund (WWF) is dedicated to protecting _______ world's wildlife and the rich biological diversity that we all need to survive. a. a b. an c. the d. Ø

I _______ find my own way there. You _______ wait for me. a. should / can't b. have to / must c. can / needn't d. might / mustn't

Many modern medicines are derived _______ plants and animals. a. on b. for c. from d. in

World Wide Fund for Nature was formed to do the mission of the preservation of biological diversity, sustainable use of natural resources, and the reduction of POLLUTION and wasteful consumption. a. contamination b. energy c. extinc

Jenny's engagement ring was precious! It _______ have cost a fortune. a. must b. should c. can d. needn't

_______ is the existence of a wide variety of plant and animal species living in their natural environment. . a. Biodiversity b. Conservation c. Globe d. Individual

Internationally, 189 countries have signed _______ accord agreeing to create Biodiversity Action Plans to protect endangered and other threatened species. a. a b. an c. the d. Ø