_____________________ is the elimination of waste products from the blood. Fill in the blank. A) Circulation B) Respiration C) Excretion

Name the part of the digestive system that 1 points to.

Which of the following protects the body from germs and disease? A)red blood cells B) white blood cells C) platelets

Name the part of the digestive system that 3 points to.

The blood releases( libera) ________ and obtains (obtiene) _______ to take back to the heart . Fill in the blank. A) carbon dioxide , oxygen B) oxygen , carbon dioxide C) water , air

Which system transports nutrients, oxgyen and waste products around the body ? A) circulatory system B) excretory system C) respiratory system

Is A or B an healthy artery ?

What is the contraction of the heart called? A) systole B) diastole C) pulmonary circulation

Name the part of the heart that A points to.

Which blood vessle carries blood away from the heart towards all the body´s organs.? A) arteries B) capillaries C) veins

Name the part of the heart that B points to.

What is the name of the gland shown in this picture? A) sweat gland B) salivary gland C) pituitary gland