What happened one day at the museum?
A child hurt a cat.
B. A mother cat hurt a child.
C. A mother cat wanted to play with a baby.
D. A mother wanted to get a cat for her child.
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What was the museum's final decision?
A. The museum will get rid of all the cats.
B. The museum will not let people bother the cats.
C. The museum will let the cats remain at the museum.
D. The museum will not let people send bad comments to its Weibo.
蓝藻属于( )。
A. 间核生物
B. 原核生物
C. 后核生物
D. 真核生物
蓝藻的藻蓝素存在于_____中。
A. 细胞核
B. 色素体
C. 原生质
D. 细胞壁
下列不是蓝藻的常见繁殖方式的是_____。
A. 细胞分裂
B. 段殖体繁殖
C. 内生孢子繁殖
D. 厚壁孢子繁殖