The stress hormone in plants which functions during a drought is:

1. Auxins
2. Abscisic acid
3. Ethylene
4. Cytokinins

Compressed natural gas (CNG) is proposed to be a better alternative to fossil fuel. Which of the following reasons makes it a better alternative?

P. Combustion leaves little or no residue

Q. Absence of Carbon in CNG

R. Easily available

1. Only P
2. Only Q
3. Only P and R
4. Only Q and R

Lata wanted to cross the road. She looked on either side of the road and then walked across to the other side of the road.

Which of the following is / are involved in the process described above?

• 1. Cerebrum
• 2. Cerebellum
• 3. Skeletal muscles
• 4. Medulla Oblongata

1. Only 3
2. Only 1 and 3
3. Only 1, 3 and 4
4. Only 1, 2 and 3

Name the following:

(a) The respiratory pigment in Erythrocytes.

(b) The tissue that transports manufactured food from the leaves to all the parts of the plant.

(c) The type of gene, which in the presence of a contrasting allele, is not expressed.

(d) The duct which carries urine from the urinary bladder to outside the body.

(e) The collective term for the protective membranes of the brain.