dolphins\nbody paragraph\ndolphins are mammals that live in water and look like fish. dolphins…

dolphins\nbody paragraph\ndolphins are mammals that live in water and look like fish. dolphins are\nconsidered to be mammals since they give birth to live young. they also\ngive their young milk like other mammals. in fact, dolphins breathe air\nand cannot remain underwater for longer than 20 minutes. so, even\ntough they live in water and look like fish, dolphins are still mammals.\nwhich part of the paragraph is underlined?\ntopic sentence\nconcluding sentence\nsupporting detail

dolphins\nbody paragraph\ndolphins are mammals that live in water and look like fish. dolphins are\nconsidered to be mammals since they give birth to live young. they also\ngive their young milk like other mammals. in fact, dolphins breathe air\nand cannot remain underwater for longer than 20 minutes. so, even\ntough they live in water and look like fish, dolphins are still mammals.\nwhich part of the paragraph is underlined?\ntopic sentence\nconcluding sentence\nsupporting detail

Answer

Brief Explanations:

A topic sentence introduces the main idea of a paragraph. The underlined sentence "Dolphins are mammals that live in water and look like fish" sets the stage for the paragraph's discussion about dolphins being mammals despite their aquatic appearance. A concluding sentence wraps up the paragraph, and a supporting detail provides additional information. Since this sentence starts the paragraph and presents the core concept (dolphins as mammals with a fish - like look), it fits the role of a topic sentence.

Answer:

Topic Sentence