Jim is the owner of FunPlex, an indoor playground for children. One of the firm’s main attractions is its giant ball pit the size of a football field that kids can play in. The ball pit consists of red, blue, and green colored plastic balls. Jim believes the most common color ball is red, second most common is blue, and third most common is green. However, due to the massive size of the ball pit he really is not sure. Jim asks his two employees Shawn and Rachel to estimate what percentage of balls in the entire ball pit are red, blue and green: Rachel randomly pulls out 1,000 balls from the pit and records the number of red (330), blue (330) and green (340) balls. Based on this, she estimates that for the entire ball pit = 33% of the balls are red, 33% of the balls are blue, and 34% of the balls are green. Shawn randomly pulls out 100 balls from the pit and records the number of red (40), blue (35), and green (25) balls. Based on this, he estimates that for the entire ball pit = 40% of the balls are red, 35% of the balls are blue, and 25% of the balls are green. Which employee’s estimate should the owner Jim believe to be more accurate?

Name the outer serous membrane that lines the cavity where the heart is located, labelled A.

Identify the Red Blood Vessel at “D” and indicate Right or Left.

Identify ALL of the antigens that are on the red blood cells of an individual with blood type O-.

Name the layer labelled B (the yellow area).

Identify The Blood Vessel at “B”. 

Are the Blood Vessels at “A” carrying blood toward the heart or away from the the heart?

Identify the Blood Blue Blood Vessel at “B” and indicate Right or Left.

The blood sample below has been separated by centrifugation into the 2 major components. Name these 2 components of blood.

Identify the AREA/REGION of the heart labelled B. (NOTE: The arrow is pointing to an entire area, not a specific chamber or structure.)