Text 11. Reptiles

1. Reptiles in the sea are not very … .

a) existent c) diversity

b) diverse d) extinct

2. If modern reptiles could … high salinity, they would be more widespread in the seas.

a) resistant c) tolerate

b) tolerance d) exist

3. Salt-excreting glands help reptiles … to high salinities.

a) adapt c) tolerate

b) resist d) withstand

4. The sea … spend their whole life in the sea.

a) lizards c) reptiles

b) turtles d) snakes

5. Sea reptiles can be … for a long time because of their ability to absorb oxygen directly from seawater.

a) submerged c) fed

b) breathing d) adapted

6. The little file snake can be found in both salty and … water .

a) aquatic c) brackish

b) fresh d) surface

7. Sea krait … feed mainly on eels.

a) kinds c) reptiles

b) species d) types

8. Sea krait breed … .

a) underwater c) on land

b) on the earth d) in the sea

9. The Galapagos marine iguana is a species of … .

a) turtles c) snakes

b) kraits d) lizards

10. A long life … is characteristic of the sea turtles.

a) span c) duration

b) period d) proportion

Text 12. Mammals

1. The Cetacea and Sirenia are … of wholly aquatic mammals.

a) classes c) species

b) orders d) kinds

2. All cetaceans fed on … .

a) algae c) flash

b) plankton d) birds

3. The Caribbean manatee … in both marine and inland waters.

a) finds c) happens

b) widespread d) occurs

4. All sirenians do not feed on … .

a) flash c) algae

b) sea grasses d) plants

5. Both eared and earless seals are … .

a) herbivorous c) omnivorous

b) carnivorous d) grass-eating

6. There are … and inland water species of otters .

a) coastal c) aquatic

b) sea d) marine

7. Terrestrial mammal families are more diverse at … latitudes.

a) middle c) lower

b) different d) higher

8. There are a lot of suitable … at higher latitudes.

a) environments c) habits

b) habitats d) species

9. Shelf waters of high latitudes are very … .

a) productivity c) productive

b) available d) suitable

10. Terrestrial mammal families differ from … mammals.

a) coastal c) inland

b) land d) aquatic

Text 13. Birds

1. It is more difficult to define … than marine species in other groups.

a) mammals c) reptiles

b) sea birds d) algae

2. Sea birds have their … sites in terrestrial habitats.

a) flying c) feeding

b) hunting d) breeding

3. Penguins … most of their life along coastlines.

a) spend c) feed

b) breed d) nest

4. Albatrosses … all their food from marine habitats.

a) feed c) breed

b) get d) grow

5. A lot of sea birds … inland .

a) find c) occur

b) inhabit d) happen

6. About three hundred … are largely marine .

a) geese c) ducks

b) sea birds d) species

7. Sea birds are less … in tropics than at higher latitudes.

a) diverse c) marine

b) diversity d) aquatic

8. The … of all sea birds are widespread at higher latitudes.

a) minority c) population

b) majority d) habitat

9. … species are more diverse at lower latitudes .

a) marine c) aquatic

b) sea d) terrestrial

10. The northern hemisphere is characterized by … diversity of sea birds.

a) higher c) lower

b) equal d) high