A / an _______ species is a population of an organism which is at risk of becoming extinct.
a. dangerous b. endanger c. endangered d. endangerment
C
_______ 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
A
15,589 species (7,266 animal species and 8,323 plant species) are now considered _______ risk _______ extinction.
a. at / of b. on / in c. for / with d. in / at
A
Many modern medicines are derived _______ plants and animals.
a. on b. for c. from d. in
C
The Bali Tiger was declared extinct in 1937 due to hunting and HABITAT loss.
a. reserve b. generation c. diversity d. natural environment
D
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
D
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
A
You _______ take your umbrella along with you today. It _______ rain later on this afternoon.
a. ought to / mustn't b. needn't / will c. will / must d. should / might
D
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
D
Jenny's engagement ring was precious! It _______ have cost a fortune.
a. must b. should c. can d. needn't
A
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
C
_______ 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
A
Hiking the trail to the peak _______ be dangerous if you are not well prepared for dramatic weather changes. You _______ research the route a little more before you attempt the ascent.
a. might / can b. may / mustn't c. can /
C
Probability of extinction depends _______ both the population size and fine details of the population demography.
a. on b. in c. from d. for
A
He is unreliable. What he says _______ be believed.
a. cannot b. must not c. may not d. might not
A
When you have a small child in the house, you _______ leave small objects lying around. Such objects _______ be swallowed, causing serious injury or even death.
a. should / must b. should not / might c. needn't / may d. mustn't / ca
B
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
C
Peter has been working for 10 hours. He _______ be very tired now.
a. needn't b. must c. has to d. should
B
It is found that endangered species are often concentrated in areas that are poor and densely populated, such as much of Asia and Africa.
a. disappeared b. increased c. threatened d. reduced
C
Frank's wallet is lying on the coffee table. He _______ it here last night.
a. must have left b. should have left c. must be leaving d. needn't leave
A
Many nations have laws offering protection to these species, such as forbidding hunting, restricting land development or creating _______.
a. agencies b. reserves c. awareness d. challenges
B
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
B
Only a few of the many species at risk of extinction actually make it to the lists and obtain legal _______.
a. protect b. protection c. protective d. protector
B
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
D
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