A key is a set of questions about the characteristics of living things., You can use a key to identify a living thing or decide which group it belongs to by answering the questions., Classification is putting things into groups., Animals are divided into two main groups., Animals that have a backbone (spine) are called vertebrates., Animals that don't have a backbone are called invertebrates.,

Classification

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ฝัง

ลีดเดอร์บอร์ด

สไตล์ภาพ

ตัวเลือก

สลับแม่แบบ

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