Which of the following is the fleshy part of a mango ?

1. Pericarp
2. Endocarp
3. Epicarp
4. Mesocarp

The food material stored in a maize grain is :

1. Protein
2. Fat
3. Starch
4. Cellulose

Which part of the flower attracts insects for pollination ?

1. Calyx
2. Corolla
3. Stamens
4. Stigma

Which of the following is not a necessary condition for the germination of seeds ?

1. Air
2. Water
3. Soil
4. Warmth