Iodine is obtained from

• Laminaria 

• Chlorella

• Polysiphonia

• Porphyra

Phloem parenchyma is absent in

• monocot stem

• dicot stem

• dicot root'

• dicot leaf

Which one of the following is a natural growth inhibitor?

• NAA

• ABA

• IAA

• GA

In blood, CO₂ is transported majorly as

• sodium carbonate

• carboxyhaemoglobin

• bicarbonate

• CO₂ as such

Tetradynamous stamens are found in family

• Malvaceae

• Solanaceae

• Cruciferae

• Liliaceae

Which one of the following is a saprophytic bryophyte?

• Riccia fluitans

• Buxbaumia aphylla

• Funaria hygrometrica

• Sphagnum

In CAM plants, CO₂ acceptor is

• RuBP

• PEP

• OAA

• PGA

In Whittaker's system of classification, prokaryotes belong to the kingdom

• Monera

• Protista

• Animalia

• Fungi

Which one is a short day plant?

• Brassica campestris

• Raphanus sativus

• Glycine max

• Papaver somniferum

In which of the following, putrefying bacteria is present in?

• Intestine

• Colon

• Stomach

• Liver