51.

Morphine, which is used as an analgesic is obtained from

• Taxusbrevifolia

• Berberisnilghiriensis

• Cinchona officinalis

• Pa paver somniferum

Pellagra is caused by deficiency of vitamins

• B₅

• B2

• B₆

• B₁

Parthenogenesis is a term of

• Budding

• Asexual reproduction

• Sexual reproduction

• Regeneration

Bartholin’s gland is found in

• Penis

• Stomach

• Liver

• Vagina

Which one of the following statements best characterises the testis?

• The seminiferous epithelium contains only proliferative cells

• Functional compartmentalisation of the seminiferous epithelium depends on tight junctions

• The interstitial tissue contains few capillaries

• The seminiferous epithelium contains numerous capillaries

Drugs that cause malformation in developing embryo during pregnancy are called

• Teratogens

• Nicotine

• Tranquillisers

• Alcoholic beverages

Which set is similar?

• Corpus luteum – Graafian follicles

• Sebum – Sweat

• Vitamin-B₇ – Niacin

• Bundle of His – Pacemaker

The scientific name of gharial is

• Naja bun garus

• Gaviails gangeticus

• Hemidactylusflavivridis

• None of the above

Soil salinity is measured by

• Porometer

• Calorimeter

• Conductivity meter

• Potometer

Predation and parasitism are which type of interactions.

• (+, +)

• (+, 0 )

• ( -)

• (+, -)