A man with blood group “A” can receive blood from persons having blood groups _____.

1. 1. A, O
   2. A, AB, B
   3. A, B, O
   4. A, B

What does Mycology study?

1. 1. Sound
   2. Fungus
   3. Insects
   4. Minerals

During the day time, plants take in _____.

1. 1. carbon dioxide and give out oxygen
   2. oxygen and give out carbon dioxide
   3. nitrogen and give out oxygen
   4. carbon dioxide and give out nitrogen

Cork cells are impervious to water because of the presence of _____.

1. 1. Cutin
   2. Lignin
   3. Cellulose
   4. Suberin

Age of a tree can be determined by _____.

1. 1. Counting the number of leaves
   2. Counting the number of rings in the stem
   3. Counting the number of branches
   4. Measuring the size of the tree

Fern belongs to _____.

1. 1. Bryophyta
   2. Anthophyta
   3. Pterophyta
   4. None of these

A plant cell is distinguished from an animal cell by the presence of _____.

1. 1. Cell wall
   2. Chloroplasts
   3. Nucleus
   4. Cell membrane

Vaccines are _____.

1. 1. Strands of nucleic acids
   2. Treated bacteria or viruses or one of their proteins
   3. Same as monoclonal antibodies
   4. MHC proteins

Which of the following is an example of hereditary disease?

1. 1. Haemophilia
   2. AIDS
   3. Syphilis
   4. Xeropthalmia

Deficiency of Iron in the human body causes _____.

1. 1. Anaemia
   2. Goitre
   3. Trachoma
   4. Glaucoma