Frog Circulatory System Quiz

The conversion of the sixth aortic arch into a pulmonary artery

The separation of oxygenated and deoxygenated blood not being completed

The elimination of gills reducing obstacles to blood flow

The shift from gill to lung breathing (correct)

Blood from the lung enters the left atrium

Blood from the body enters through the sinus venosus and right atrium

When the ventricle contracts, blood moves to the lungs or body

Both atria contract at the same time, driving blood into the ventricle (correct)

They use their front limbs to grab and immobilize prey

They catch prey with a tongue that is attached at the front of the mouth (correct)

They use a sticky secretion from their skin to trap prey

They use their teeth to hold prey without biting or chewing

<p>To hold prey; they do not bite or chew</p> Signup and view all the answers

<p>The short digestive tract produces enzymes for digesting fats, carbohydrates and proteins</p> Signup and view all the answers