The intensity levels of whispering noise is

• 10-15 dB

• 20-40 dB

• 45-50 dB

• 50-55 dB

The wild-life protection act was introduced in

• 1972

• 1981

• 1986

• 1991

In honey, the percentage of maltose and other sugar is

• 9.2

• 8.81

• 10.5

• 11.2

Identify the correct type of food chain

Dead animal > Blow fly maggots > Common frog > Snake

• Grazing food chain

• Detrital food chain

• Decomposer food chain

• Predator food chain

Which is not applicable to the biological species concept

• Hybridization

• Natural population

• Reproductive isolation

• Gene pool

DNA sequences that code for protein are known as

• introns

• exons

• control regions

• intervening sequences

Which one of the following is a systematic insecticide

• Malathion

• Endrin

• Parathion

• Furadan

Which is the correct sequence of arrangement of types of WBC in decreasing order in terms of number per mm³ of human blood

• Eosinophils > Basophils > Neutrophils

• Basophils > Eosinophils > Neutrophils

• Neutrophils > Eosinophils > Basophils

• Eosinophils > Neutrophils > Basophils

Seedless banana is

• parthenocarpic fruit

• multiple fruit

• drupe fruit

• true fruit

In AIDS, HIV kills

• Antibody molecule

• T-helper cell

• Bone-marrow cells

• T-cytotoxic cell