click below
click below
Normal Size Small Size show me how
zoology 2
Test 1 lessons 1-2
| Question | Answer |
|---|---|
| Why do whales "beach" themselves? | they are disoriented or sick |
| What causes tides? | the moon |
| What is the beginning of a river called? | Head |
| Thermohaline currents are caused by what? | temperature and salt levels |
| What happens to the blowhole when a whale is under water? | it closes tight |
| The moon takes more than how many days to travel around the earth? | 28 |
| The place where a river meets with an ocean | estuary |
| Use the sun to make their own food. | phytoplankton |
| a circular current pattern in the ocean. | gyre |
| Name the 4 zones of the ocean floor | continental slope, continental shelf, continental rise, abyssal plain |
| What must a calf do as soon as it is born? | get to the surface to get air |
| a whale leaping into the air and flopping in the water with a big splash | breaching |
| what is conservation | saving something |
| Which whale has a single long horn | narwhale |
| means has a backbone | vertebrate |
| These creatures clean up the oceans and rivers of the world. | filter feeders |
| When dolphins race near the surface and make low leaps out of the water it is called what? | porpoising |
| What do most toothed whales have that allow them to see in the dark? | melon |
| animals that swim | necktonic |
| why were whales hunted and killed in the early 1900's | money |
| Which is the largest animal on earth? | the blue whale |
| What is the most important sense for cetaceans? | hearing |
| Which famous whale sings a low, moaning song that lasts for 10-20 minutes? | humpback whale |
| What do we know about the whale's breathing system | it is completely separate from its mouth |
| Cetacean's breath through their what? | blowhole |
| when a whale slaps the water with its fluke and that is all that is above water | lobtailing |
| Whales migrate in groups called what | pods or herds |
| when a whale sits straight up out of the water with its head up | spyhopping |
| What was whale blubber used for | oil |
| these animals don't swim... they scoot, crawl, scurry burrow or slither | benthic |
| The end of a whales tale is called a what? | fluke |
| Whales are called "cetaceans" which are divided into what 2 groups? | baleen whales and toothed whales |