六年级 科学

Which of the following is NOT a microorganism?

以下哪一个不是微生物？

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Which of the following is a virus?

以下哪一个是病毒?

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Which of the following is TRUE? 根据上图，以下哪项说明是正确的？

• Bread mold can reproduce. 霉菌会繁殖。

• Bread mold is a plant. 霉菌是一种植物。

• Bread mold does not need air and water to survive. 霉菌不需要空气和水也能生存。

• Bread mold can make their own food. 霉菌会自己制造食物。

Which of the following equipment can be used to observe microorganisms in the river? 以下哪种用具能帮助观察河水里的微生物？

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Which of the following microorganisms can be used to produce yogurt? 以下哪个微生物可以用来制作酸奶？

• yeast 酵母菌

• Paramecium 草履虫

• plankton 浮游植物

• Bacillus 杆菌

The picture shows that amoeba can:

上图显示变形虫可以：

• reproduce 繁殖

• grow 生长

• move 移动

• breathe 呼吸

Vaccine is made of _________. 疫苗是使用_________制成的。

• Bacteria and virus 细菌和病毒

• Algae 藻类

• Protozoans 原生动物

• Fungi 真菌

Which of the following is NOT a correct way to prevent diseases from spreading? 以下哪项不是正确的预防传染病的步骤？

• Use a handkerchief when sneezing 打喷嚏时用手帕

• Wear a mask if coughing 咳嗽是戴口罩

• Share towels and cutlery with family members 与家人公用毛巾和餐具

• Always wash hands with soap 经常使用肥皂清洗双手

Which microorganism can decay wilted plants and animal carcasses? 以下哪个微生物能够分解已枯萎的植物和动物的尸体？

• virus 病毒

• algae 藻类

• protozoans 原生动物

• fungi 真菌

Which of the following is FALSE about Protozoans?

以下哪一项不是原生动物的特征？

• Live in the river, sea and wet soil 生活在河，海和潮湿的土壤中

• They eat bacteria and algae 细菌，藻类是它们的食物

• Include Paramecium and Amoeba 包括草履虫和变形虫

• Smallest microorganism 体积最小的微生物