3.2a

name of the valve that separates right atrium from right ventricle.

• tricuspid

• aortic

• mitral

Valve that blood is forced through from right ventricle into pulmonary arteries.

• pulmonary semi lunar valve

• aortic valve

• mitral valve

The purpose of heart valves is to 

• set the pace at which the heart beats

• prevent blood from flowing backward

• oxygenate the blood as it passes through the valve

• add minerals to the blood

Deoxygenated blood enters the right atrium from the top of the heart.

• inferior vena cava

• superior vena cava

• aorta

Identify an example of each of the three states of matter present when the candle is burning.

• The hard wax of the candle

• Gas

• The melting wax

• Solid

• The fire/flame

• Liquid

Tags

NGSS.MS-PS1-4

Match the following

• C

• Precipitation

• A

• Condensation

• B

• Transpiration

• D

• Evaporation

Tags

NGSS.MS-ESS2-4

Which of the following is (are) the characteristics of the blood circulatory system of a fish?

• has 1 atrium

• has 1 ventricle

• has 2 atria

• has 2 ventricles

• no septum

Which of the following is (are) the characteristics of the blood circulatory system of a mammal?

• has 1 atrium

• has 1 ventricle

• has 2 atria

• has 2 ventricles

• no septum

................................... of the heart has the thick muscular wall because it pumps the blood to the systemic circuit

• left ventricle

• Right ventricle

• right atrium

• left atrium

When the ventricles contract, the bicuspid (mitral) valve prevents blood from flowing from the ________.

• right ventricle to right atrium

• left ventricle to left atrium

• left atrium to the right atrium

• right atrium to the left atrium