Ambulacral grooves are absent in the living forms of the Class

• Crinoidea

• Asteroidea

• Ophiuroidea

• Echinodermata

The ganglia of sympathetic and the central nervous system in frog develops from the

• neural cell

• neural plate cells

• notochordal cells

• neural crest cells

Which of the following teeth are lophodont?

• Incisor and canine

• Canine and premolar

• Premolar and molar

• Premolar and incisor

The photorespiratory carbon-oxidation cycle involves the interaction of

• chloroplast

• mitochondria

• peroxisomes

• all of these

Bud dormancy is induced by

• ABA

• ethylene

• IAA

• gibberellic acid

Which of the following is related to glycosylation of protein?

• Lysosome

• Mitochondrium

• Peroxisome

• Rough endoplasmic reticulum

Excretion in cockroach takes place by

• nephridium

• parotid gland

• coxal glands

• malpighian tubules

Glycolysis is found in cytoplasm of virtually all types of aerobic/ anaerobic cells. In this process glucose is converted into

• PEP

• acetyl CoA

• pyruvic acid

• citric acid

A chromosome carrying the centromere at one of the ends is called

• acentric

• submetacentric

• telocentric

• metacentric

Which of the following digestive juices has the minimum pH value?

• Bile

• Gastric juice

• Saliva

• Pancreatic juice