Q: 45 (IES/2002)

Consider the following statements:
1. The adult human lungs have an internal area which is 40 times the external surface of the body.
2. Male mosquitoes lack the blood sucking mouth parts.
3. Now adays, viruses are cultured in an artificial medium also.
4. Duck eats only vegetarian food.
Which of these statements are correct ?
question_subject: 
Science
question_year: 
2002
question_exam: 
IES
stats: 
0,664,736,664,208,144,384