Exam 3 Review Flashcards
Approximately how many marine reptile species are there alive today?
100
Which of the following species do not lay eggs on land?
Sea snakes
Which of the following is not conservation concern for sea turtles?
loss of food availability
Where are marine iguanas found?
Galapagos Islands
Which of the following species are endothermic?
Leatherback turtle
Which of the following contains the most living marine mammal species?
Cetacean (Mysticetes and Odontocetes)
What is the largest species of baleen whale?
Blue whale
Which of the following marine mammals give birth on land?
Pinnipeds
All marine mammals have to breathe air at the surface
True
Which species of cetacean has gone extinct in the past 5 years?
Yangtze River Dolphin
All of the following are characteristics of Mysticetes except…
use of echolocation to find food
Because of low visibility in the marine environment, many marine mammals use _____
to communicate.
sound
Which marine mammal has the densest fur?
sea otter
Which characteristics describe the Phocidae family?
Lack external ear pinnae and Found at a range of latitudes, from the tropics to the poles
Marine otters are larger than sea otters and live primarily in the northern hemisphere.
false
Which of the following species if known for its unique teeth that it uses to filter out krill?
crabeater seal
What is the largest member of the Delphinidae family?
killer whale
No known marine vertebrate is deaf.
true
The oceans are noisy, in part because of shipping traffic across the globe. In which
hemisphere does the majority of shipping take place?
northern hemisphere
Which of the following is NOT an aquatic adaptation of penguins?
Pneumatic bones
Which of the following is not a marine reptile?
Nerodia sipedon
Fish exhibit the greatest species diversity of all other vertebrate groups.
true
Some fish have heat-producing mechanisms that allow them to maintain warm muscles, in turn allowing for short-bursts of speed and/or improved vision in cold water.
true
According to the textbook, what is a possible reason that puffin populations are decreasing?
A decline in the population of sand eels, their preferred prey items, due to growing fisheries
Which of the following animals has a lateral line system?
bony fishes
A seahorse is a type of bony fish
true
The hawksbill turtle’s sharp beak is specially adapted for feeding on what?
sponges
How are sea turtles being affected by climate change?
a. Rising sea levels erode resting beaches where females lay their eggs
b. Rising temperature causes the sex ratio to be biased towards females
c. Rising temperature increases the likelihood that sand temperature will exceed the upper limit for egg incubation
Decompression sickness is primarily caused by which gas coming out of solution and forming bubbles?
Nitrogen
All marine mammals have thick fat layers for insulation
false
Which of the following is not an adaptation of marine mammals to avoid the ‘bends’?
Avoid rapid swimming at bottom of dives
How long can the average human survive in 45o water?
1-3 hours
Which of the following species of marine mammals eats other marine mammals?
killer whale
