Review Exercise

The following 10 questions focus on the information addressed in Session Two. You must provide an answer for each question. To check your answers, press the Check Answers button at the bottom of the exercise.
Some seals have multiple rows of teeth for
fend off larger predators
chewing on ice
attracting mates--the more teeth, the better
straining krill and gripping food

The staple of the Antarctic food chain is
squid
the young from other species
krill
small plants such as mosses and lichens

While mating with a previous partner is common for some penguin species, only the _______ stay with their mates all year
Gentoos
Emperors
Chinstraps
Adelies

The eyes of penguins and seals are sensitive to
whitish colors because of all the snow and ice
blue-green colors because it helps them see better in water
darkness because of Antarctica's five months of darkness
bright light because of the light reflecting off the snow

Common penguin predators include
skuas, leopard seals, and killer whales
other larger penguin species, leopard seals, and killer whales
other larger penguin species, leopard seals, and elephant seals
other larger penguin species and killer whales

Which of the following is NOT commonly used by seals when hunting for food is
sonar to locate groups of fish/krill
radar to locate individual pieces of food
pack hunting using large groups to surround the food
silver lining in their eyes to help reflect light in dark areas--like cat eyes

Laying two eggs, one larger and one smaller, is a common tactic used by
Adelie and Emperor Penguins
Chinstrap and Gentoo Penguins
Emperor Penguins only
Adelie, Macaroni, and Rockhopper Penguins

The population growth rates for seals and penguins is attributable to
declining demand for seal and penguin meat
longer breeding seasons due to global warming
the decline of their chief food competition--whales
reasons for which scientists have no theories

Feeding on young seals and penguins is done occasionally by
Crabeater Penguins
Emperor Penguins
Elephant Seals
Leopard Seals

The reddish-pink guano left behind by penguins denotes
a need for additional vitamins in their diet
a reliance on Krill as a food source
the female is ready to lay her egg(s)
the fasting done by many penguins when incubating their eggs


This activity marks the end of Session Two. Please complete the user response form before going onto Session Three.

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