Question

use the text to compare and contrast baleen whales and toothed whales.
whales are classified into two major groups, depending on whats inside their mouths. toothed whales have teeth that they use to catch food from the ocean. but instead of teeth, baleen whales have plates that filter water out of their mouths and trap krill inside. the physical features and habits of these whales differ in other respects, too. baleen whales have symmetrical skulls, which means their skulls are balanced in size and shape. toothed whales, however, have asymmetrical skulls. baleen whales have two blowholes and large tongues. toothed whales have only one blowhole each and small tongues. toothed whales live in complex social groups and use echolocation, a process of using sound waves to hunt and navigate. by contrast, baleen whales live in small groups and most likely do not use echolocation.

Explanation:

• For "Have symmetrical skulls": The text says baleen whales have symmetrical skulls (balanced in size and shape), so check the baleen whales box.
• For "Have one blowhole": The text states toothed whales have only one blowhole, so check the toothed whales box.
• For "Have large tongues": The text says baleen whales have large tongues, so check the baleen whales box.
• For "Live in small groups": The text mentions baleen whales live in small groups, so check the baleen whales box.
• For "Use echolocation": The text says toothed whales use echolocation, so check the toothed whales box.

Answer:

Baleen whales	Toothed whales
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$\square$	$\square$ (checked)