Question of the Week

Question of the Week:

Enlist three characters of Birds.

Solution:Three characteristics that differentiate birds from others are given below:
1. Their forelimbs are modified to wings.
2. Their bones are hollow n filled with air making them light weight. these are called Pneumatic bones.
3. They are endothermic, egg-laying vertebrates with feathers on their skin.

AIPMT 2009 Answer key

Answer key for AIPMT 2009 held on Sunday, the 5th of April, 2009.

Question of the Week

Question of the Week:

How many eyelids does CAMEL have?

Solution:
A Camel has THREE eyelids.
If sand gets into an eye, a camel has a third eyelid to get it out (B). Like a windshield wiper on a car, this extra eyelid moves from side to side and wipes the sand away. The eyelid is very thin, so a camel can see through it. In sandstorms, camels often close their third eyelid and keep walking. You might say that a camel can find its way through a sandstorm with its eyes closed. To protect their eyes, camels have long eyelashes (A) that catch most of the sand. (Source: http://www.allsinai.info/sites/fauna/camel.htm).

Question of the Week

Question of the Week:

Name one food made by using Bacteria.

Solution:
Curd/ Yoghurt is a common food produced by the action of a bacterium (singular for bacteria) called Lactobacillus on milk. Lactobacillus causes curdling of milk by producing lactic acid, hence separating whey from milk.