Study the following statement with reference to drugs and choose the incorrect ones
(i). Barbiturates cause sleeplessness
(ii). Opioids are obtained from the leaves of Erythroxylum coca
(iii). Morphine is a very effective sedative and pain killer
(iv). Cocaine is obtained from hemp plant

Study carefully the following statements and select the incorrect one(s). (i). Lateralroots develop from pericycle. (ii) . Endodermis is the innermost layer of cortex (iii). Sapwood is the central, dark coloured, non-conducting part of secondary xylem.

Study carefully the following statements and select the incorrect one(s). (i). Lateralroots develop from pericycle. (ii) . Endodermis is the innermost layer of cortex (iii). Sapwood is the central, dark coloured, non-conducting part of secondary xylem.

Study carefully the following statements and select the incorrect one(s). (i). Lateralroots develop from pericycle. (ii) . Endodermis is the innermost layer of cortex (iii). Sapwood is the central, dark coloured, non-conducting part of secondary xylem.

Identify the plant given below. choose the incorrect statement with respect to the drug obtained from the given plant.

Identify the plant given below. choose the incorrect statement with respect to the drug obtained from the given plant.

How many statements about cannabinoids is/are correct from the given statements? (i) Natural cannabinoids are obtained from the inflorescence of Erythroxylum coca (ii) Marijuana, Hashish, Charas and Ganja are obtained from flower tops, leaves and the resin of Papaver somniferum (iii) Cannabinoids are generally taken by inhalation and oral ingestion (iv) Cannabinoids have no effect on cardiovascular system of body

From the following sets choose the incorrect representations. (i) K.G. for kilogram (ii) ""^(@)C for degree Celsius (iii) mts for metre (iv) s for second

Study the following statements regarding food chains and select the correct ones. (i) Removal of 80% tigers from an area resulted in greatly increased growth of vegetation. (ii) Removal of most of the carnivores resulted in an increased population of deers. (iii) The lenght of food chains is generally limited to 3-4 trophic levels due to energy loss. (iv) The lenght of food chains may vary from 2 to 8 trophic levels. A) i and ii B) ii and iii C) i and iii D) iii and iv

Study the following statements regarding food chains and select the correct ones. (i) Removal of 80% tigers from an area resulted in greatly increased growth of vegetation. (ii) Removal of most of the carnivores resulted in an increased population of deers. (iii) The lenght of food chains is generally limited to 3-4 trophic levels due to energy loss. (iv) The lenght of food chains may vary from 2 to 8 trophic levels. A) i and ii B) ii and iii C) i and iii D) iii and iv