What the purpose of the mucus found within the respiratory system is to

A. trap particles from the air before they reach the lung.

B. lubricate the epiglottis

c. is wrong

D. push the cilia away from the lungs

What is the difference between inorganic and organic compounds?

In which direction does the Sun appear to move across the sky? A. from west to east B. from east to west C. from north to south D. from south to north

Which of the following is NOT true about male condoms? A. They can be washed and reused B. Their usage requires planning ahead and good communication between partners. C. They are effective at preventing the transmission of STDs. D.

What is a phagocytes

Whenever energy is transformed from one form to another (and this happens whenever energy is used), some energy always escapes as heat energy.

Do animals secrete hormones to break down food

Which disease is caused by a pouching of the small intestine and peritoneum into the groin area? a. achalasia. b. hemorrhoids c. inguinal hernia d. colon polyps?

At the beginning of cell division the chromosome consists of what two sections

The fact that both green and yellow peas were produced by tall pea plants in predictable frequencies led mendel to propose the

What is a simple statement that predicts the result of a controlled scientific experiment? Question 1 options: Observation Hypothesis Conclusion Theory SaveWhat is a simple statement that predicts the result of a controlled scientific experiment?