Podcast
Questions and Answers
Laurasiatheria is a group of placental mammals that includes only marine mammals.
Laurasiatheria is a group of placental mammals that includes only marine mammals.
False
Marine mammals store extra oxygen in their lungs to stay underwater for long periods.
Marine mammals store extra oxygen in their lungs to stay underwater for long periods.
False
All marine mammals can stay underwater for a long time without coming to the surface to breathe.
All marine mammals can stay underwater for a long time without coming to the surface to breathe.
False
Blubber is a layer of muscle that helps marine mammals swim faster.
Blubber is a layer of muscle that helps marine mammals swim faster.
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Marine mammals are adapted to living their entire life on land.
Marine mammals are adapted to living their entire life on land.
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Study Notes
Laurasiatheria
- Placental mammals in this group include shrews, bats, and carnivores such as cats.
Marine Mammals
- Adapted to living all or part of their life in the ocean.
- Can stay underwater for a long time, but must come to the surface to breathe.
- Store extra oxygen in their muscles and blood to stay underwater for long periods.
- Depend on a thick layer of blubber (or fat) to keep them warm.
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Description
Test your knowledge of mammalogy by identifying characteristics of Laurasiatheria, a group of placental mammals that includes shrews and bats, and marine mammals, which have adapted to life in the ocean. Learn about their unique features and habits.
