Microorganisms

Q. _________ are considered as ancestors of modern land plants.

1. Bacteria
   
2. Algae
   
3. Fungi
   
4. Protozoa
   

Q. Which of the following are eukaryotic cells?

1. Yeast
2. Amoeba
3. Archaea
4. Escherichia coli

Q. __________ were the first living organisms on Earth

1. Humans
2. Dinosaurs
3. Microbes
4. Steller's sea cow

Q. ___ are the precursors for all living organisms on Earth.

Q. Bacteria and other single-celled microorganisms evolved from Archaea.

1. True
2. False

Q.

Microorganisms are always harmful to humans.

1. True
2. False

Q.

Which of the following statements are true about microbes?

1. Amoeba

2. Chlamydomonas

3. Penicillium

4. Paramecium

Q. Bacteria were around when dinosaurs came into existence 243 million years ago.

1. False
2. True

Q.

Which of the following is Chlamydomonas?

1. 

2. 

3. 

4. 

Q.

The substances that are used to build immunity against certain diseases are called _________.

1. Antidote

2. Analgesic

3. Vaccine

4. Antidepressants