Roomajate ja imetajate võrdlus

Mille poolest on roomajad ja imetajad sarnased?

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Mille poolest roomajad erinevad imetajatest?

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Joonisel on  imetaja ning roomaja kere ning jäsemete asetus. Kirjuta juurde, kumb skeem vastab imetajale, kumb roomajale.

Selgita selle joonise abil roomajate ja imetajate jäsemete erinevusi. Millised eeliseid annab selline jäsemete asetus imetajatele?

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