Explain why the alveoli do not collapse when one exhales?
- A nail put into tree at height of 2m from ground.This tree grows at rate of 0.5m a year. How high will nail be after 20 years.?
- Biology Q?
- How fast does a body decay in a hospital morgue?
- Choose the correct statement:?
- Have we really evolved from apes?
- Are eugenics becoming necessary?
- Would humans exist had non avian dinosaurs not gone extinct?
- What is the greatest desire of human life?
- Are human legs evolved to walk long distances, if so how long a distance?
- Can people photosynthesize?