Gdz Po Biologii Testy Gekkaliuk 7 Klass File

✅: The mantle is a fold of skin that often secretes a shell, and the radula is a rasping organ used for feeding—both are unique to mollusks B. Amphibians ✅: have a two-chambered heart. Amphibians

A. Arthropods B. Mollusks C. Echinoderms D. Annelids

Биология: 7-й [класс] : тесты - Google Books

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