NEED NOW Read the excerpt from "Marine Mammals.”

Marine mammals are classified into four different groups: cetaceans (whales, dolphins, and porpoises), pinnipeds (seals, sea lions, and walruses), sirenians (manatees and dugongs), and marine fissipeds (polar bears and sea otters).

–"Marine Mammals,"
National Oceanic and Atmospheric Administration

Why does the author use classification to help guide readers through this part of the text?

It helps the author define the term “marine mammals.”
It helps the author identify types of marine mammals.
It helps the author describe what marine mammals look like.
It helps the reader visualize the types of marine mammals.

its b.

Explanation: and it says the types of animals that live in the ocean and are mammals.your welcome

B

Explanation: Did the test on 3dginuity

you didnt put the link on, so i cant read the paraphrase

quite an interesting way to teach topic sentences, because the answer to this question is the best definition of a topic sentence that one can present, it is as if answering the questions taught you how to do it, this is some real teaching, it is terribly well-done.

the topic sentence in this paragraph is:

topic sentences writers stay on track and keep a paragraph from becoming an aimless collection of sentences about an idea.

which incidentally tells you what a topic sentence should be.