Multiple Choice QuestionsWhich of the following preventive measures is adopted to avoid mental retardation?
Relatives should not marry each other
Consumption of drugs and liquors should be avoided by pregnant mothers
Mother and child, both should be saved from infections diseases
All of the above
Physical trauma during pregnancy may cause
mental retardation
blindness
deafness
All of the above
Other than the nucleus which cellular organelle contains DNA?
Ribosome
Golgi complex
Mitochondria
Lysosome
Which is the vestigial organ in a man?
Pinna muscles
Pinna
Ileum
Teeth
A.
Pinna muscles
Muscles of can pinna are vestigial in nature. Functionally these are responsible for the movement of ear pinna during sound wave collection in other mammals. But in humans, this ability of ear pinna is lost due to the vestigial nature of these muscles.
Which one of the following are acoelomate animals?
Echinoderms
Annelids
Arthropods
Platyhelminthes
Which type of centrum is found in the vertebra of mammals?
Amphiplaytan
Heterocoelous
Procoelous
Amphicoelous
In the absence of light, what will increase?
Water uptake
Elongation of internodes
Uptake of mineral salts
Extension of leaf lamina
Switch
