Quiz on Sirenia

What do members of the order Sirenia primarily eat?

• Fish

• Shallow-water coastal grasses

• Plankton

• Insects

Where are manatees typically found?

• Coastal areas of the Indian Ocean

• Coastal areas of the western Pacific Ocean

• Coastal areas of the tropical Atlantic Ocean

• Coastal areas of the Arctic Ocean

What is the maximum length a manatee can grow to?

• 2.5 meters (8.2 ft)

• 3.0 meters (9.8 ft)

• 4.3 meters (14 ft)

• 5.0 meters (16.4 ft)

What is the maximum weight a manatee can reach?

• 1000 kg (2200 lbs)

• 1200 kg (2645 lbs)

• 1360 kg (3000 lbs)

• 1500 kg (3307 lbs)

Where are dugongs typically found?

• Coastal areas of the tropical Atlantic Ocean

• Coastal areas of the Indian and western Pacific Oceans

• Coastal areas of the Arctic Ocean

• Coastal areas of the Mediterranean Sea

What is echolocation?

• The process by which animals use sound to locate objects.

• The process by which animals use light to locate objects.

• The process by which animals use smell to locate objects.

• The process by which animals use touch to locate objects.

How might increased marine noise pollution affect echolocation?

• It may enhance echolocation.

• It may have no effect on echolocation.

• It may disrupt echolocation.

• It may improve the accuracy of echolocation.

What limits the good vision of marine mammals?

• Ocean conditions

• Lack of light

• Depth of water

• Speed of swimming

From where do dolphins and porpoises emit sounds?

• Mouth

• Blowhole

• Fins

• Tail

Through which organ does sound pass in dolphins and porpoises?

• Brain

• Heart

• Melon

• Stomach