61.

What is the correct sequence of thickness of muscles layers in the stomach of human beings

• Circular➔Oblique➔Longitudinal

• Oblique➔Longituinal➔Circular

• Longitudinal➔ Circular➔ Oblique

• None of the above

Blind sac body plan is shown by

• roundworms

• annelids

• coelenterates

• arthropods

The typhlosole in earthworm is related with

• excretion

• absorption

• respiration

• reproduction

Nif genes occur in

• Rhizobium 

• Aspergillus

• Penicillium

• Streptococcus

A force which acts against the achievement of highest possible level to population growth is known as

• population pressure

• saturation level

• carrying capacity

• environmental resistance

Latest trend in plant disease control is

• chemical control

• biological control

• good manure and fertilizer

• breeding for disease resistance

Silk is the secretion of

• cephalic glands

• gastric glands

• buccal glands

• salivary glands

Endometrium is the lining of

• bladder

• vagina

• uterus

• oviduct

Which animal has gone extinct in recent times in India

• Acinonyx jubatus

• Antilope cervicapra

• Rhinocerus unicornis

• Panthera leo

What is true about cleavage in the fertilized egg in humans

• It is meroblastic

• It starts while the egg is in fallopian tube

• It is identical to normal mitosis

• It starts when the egg reaches in uterus