Which one of the following statements is correct?

1.	The seed in grasses is not endospermic
2.	Mango is a parthenocarpic fruit
3.	A proteinaceous aleurone layer is present in maize grain.
4.	A sterile pistil is called a staminode.

Example of an edible underground stem is:

1. Carrot

2. Groundnut

3. Sweet potato 

4. Potato

Choose the correctly matched pair:

1. Tendon-Specialized connective tissue

2. Adipose tissue-Dense connective tissue

3. Areolar tissue- Loose connective tissue

4. Cartilage- Loose connective tissue

Choose the correctly matched pair:

1. Inner lining of salivary ducts- Ciliated epithelium

2. Moist surface of buccal cavity- Glandular epithelium

3. Tubular parts of nephrons- Cuboidal epithelium

4. Inner surface of bronchioles- Squamous epithelium

Placentation in tomato and lemon is:

1. Parietal

2. free central

3. marginal

4. axile

Cymose inflorescence is present in:
1. Solanum
2. Sesbania
3. Trifolium
4. Brassica

Compared to those of humans, the erythrocytes in frogs are:

1. Without nucleus but with haemoglobin

2. Nucleated and with haemoglobin

3. Very much smaller and fewer

4. Nucleated and without haemoglobin

Vexillary aestivation is characteristic of the family:

1. Fabaceae

2. Asteraceae

3. Solanaceae

4. Brassicaceae

Select the correct statement from the ones given below with respect to Periplaneta americana.