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
C.
coelenterates
Blind sac body plan is found in coelenterates and flatworms. In this type of body plan, animals have a single opening that acts as both mouth and anus. eg, Hydra.
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
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