trong cac loai dong vat da hoc lop thu la tien hoa nhat vi;

+hien tuong thai sinh nuoi con bang sua

+co long mao bao phu co the

+tim 4 ngan , 2 vong tuan hoan

+ bo nao phat trien co them ban cau dai nao

+la dong vat hang nhiet

He ho hap cac lop la 

+lop ca ; ho hap bang mang

+lop luong cu; xuat hien phoi ho hap qua da

+lop bo sat ; phoi co nhieu vach ngan nhieu mao mach bao quanh cac co lien suon tham gia ho hap

to chua hoc ban oi

sao toan noi ve tinh yeu the

ai sang tac vay

anh sang truyen di theo duong thang

1. attractive

2. enjoyment

3. enjoy 

4. happily

ban len google ma tra ban

Pham cong Trinh