 |
| 1 | |
Marine tetrapod vertebrates do not have |
| | A) | Shelled eggs. |
| | B) | Feathers. |
| | C) | Flippers. |
| | D) | Gills. |
|
|
|
| 2 | |
Sea turtles must leave the oceans to lay eggs. |
| | A) | True |
| | B) | False |
|
|
|
| 3 | |
Sea turtles swim by means of |
| | A) | A large tail. |
| | B) | Flippers. |
| | C) | Flukes. |
| | D) | Undulation. |
|
|
|
| 4 | |
Besides humans, sea turtles are eaten by |
| | A) | Killer whales. |
| | B) | Great white sharks. |
| | C) | Land crabs and birds. |
| | D) | Sea snakes. |
|
|
|
| 5 | |
Green sea turtles, when ready to lay eggs, migrate to the nearest isolated sandy beach that they happen to encounter. |
| | A) | True |
| | B) | False |
|
|
|
| 6 | |
All 7 species of sea turtles are threatened, whereas 4 species are endangered. |
| | A) | True |
| | B) | False |
|
|
|
| 7 | |
Marine iguanas can feed in cold ocean water because they warm up by basking in the sun on rocks. |
| | A) | True |
| | B) | False |
|
|
|
| 8 | |
The most dangerous marine reptile is the |
| | A) | Marine iguana. |
| | B) | Komodo dragon. |
| | C) | Sea snake. |
| | D) | Saltwater crocodile. |
|
|
|
| 9 | |
Most seabirds breed in large colonies on land, and form life-long pair bonding. |
| | A) | True |
| | B) | False |
|
|
|
| 10 | |
Emperor penguins keep their eggs warm by which means? |
| | A) | Retaining them in a brood pouch |
| | B) | Building a large protected nest |
| | C) | Placing them between their feet and lower body |
| | D) | Lining the nest with down |
|
|
|
| 11 | |
Penguins are found mostly in the Antarctic and Arctic regions. |
| | A) | True |
| | B) | False |
|
|
|
| 12 | |
A penguin's wings are used for |
| | A) | Long-distance flying. |
| | B) | Hopping. |
| | C) | Swimming. |
| | D) | Walking. |
|
|
|
| 13 | |
A tubenose bird can be told from a gull by its |
| | A) | Long neck. |
| | B) | Pouch. |
| | C) | Salt glands. |
| | D) | Heavy beak. |
|
|
|
| 14 | |
Seabird guano can be useful for human purposes. |
| | A) | True |
| | B) | False |
|
|
|
| 15 | |
Some seabirds migrate as much as 16,000 km from one polar region to the other, and may never experience a polar winter. |
| | A) | True |
| | B) | False |
|
|
|
| 16 | |
Mammals constitute the largest group of vertebrates in terms of number of species. |
| | A) | True |
| | B) | False |
|
|
|
| 17 | |
Seals retain body heat by means of |
| | A) | Thick fur. |
| | B) | Blubber. |
| | C) | Oil glands. |
| | D) | Down. |
|
|
|
| 18 | |
Unlike a true seal, a sea lion has |
| | A) | External ears. |
| | B) | Mammary glands. |
| | C) | Paddle-shaped flippers. |
| | D) | A pair of tusks. |
|
|
|
| 19 | |
Fossils of the earliest whales do not have blowholes. |
| | A) | True |
| | B) | False |
|
|
|
| 20 | |
The skeleton of a modern whale has |
| | A) | No rear limb bones. |
| | B) | Very small rear limb bones. |
| | C) | Small front flippers. |
| | D) | No blowhole. |
|
|
|
| 21 | |
Among the great whales, the one that eats squid is the |
| | A) | Blue. |
| | B) | Gray. |
| | C) | Sperm. |
| | D) | Humpback. |
|
|
|
| 22 | |
Baleen whales have very long, hard teeth for straining small animals from the ocean. |
| | A) | True |
| | B) | False |
|
|
|
| 23 | |
The pleated throat of many baleen whales is used like an expanding accordion to draw in large amounts of water and food. |
| | A) | True |
| | B) | False |
|
|
|
| 24 | |
Dolphins are not able to |
| | A) | Learn from observation. |
| | B) | Use echolocation. |
| | C) | Form complex societies. |
| | D) | Filter food through bristles in the mouth. |
|
|
|
| 25 | |
Cetaceans move their tails up and down while fishes move theirs side to side. |
| | A) | True |
| | B) | False |
|
|
|
| 26 | |
Manatees eat |
| | A) | Seagrasses. |
| | B) | Mangroves. |
| | C) | Clams. |
| | D) | Plankton. |
|
|
|
| 27 | |
Adaptations for deep diving in marine mammals do not include which of these? |
| | A) | light-producing organs |
| | B) | Oxygen storage in muscles |
| | C) | Collapsible lungs |
| | D) | Efficient air exchange at the surface |
|
|
|
| 28 | |
The bends condition is caused by carbon dioxide bubbles forming in the blood due to pressure changes in diving. |
| | A) | True |
| | B) | False |
|
|
|
| 29 | |
Marine mammals avoid the bends by returning to the surface very slowly after a deep dive. |
| | A) | True |
| | B) | False |
|
|
|
| 30 | |
Echolocation is used not only by most toothed whales, but also by some pinnipeds and probably some baleen whales. |
| | A) | True |
| | B) | False |
|
|
|
| 31 | |
It is thought that cetaceans produce a mental "picture" of objects using echolocation sounds, since they can recognize objects by sight previously only sensed by sound. |
| | A) | True |
| | B) | False |
|
|
|
| 32 | |
Most cetacean calves are born head-first in order for the newborn to quickly gulp in air at the surface. |
| | A) | True |
| | B) | False |
|
|
|
| 33 | |
Pinnipeds often exhibit harem breeding with a dominant male mating with many females and fighting off other males. |
| | A) | True |
| | B) | False |
|
|
|
| 34 | |
Generally, pinnipeds breed |
| | A) | In the water. |
| | B) | In family groups at sea. |
| | C) | In colonies. |
| | D) | Only at night. |
|
|
|
| 35 | |
Which of these countries still hunts minke whales? |
| | A) | Japan |
| | B) | U.S.A. |
| | C) | Australia |
| | D) | Ecuador |
|
|
|
| 36 | |
If a can of tuna bears a "dolphin-safe" label, it means that |
| | A) | The country of origin does not use drift nets. |
| | B) | The quota of dolphins killed while fishing is regulated by the IWC. |
| | C) | Fishing was conducted using special purse seine nets. |
| | D) | The tuna were taken by American fishermen. |
|
|
.