Question # 1

Valves to prevent the backflow of blood are found in the:

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Arteries

Veins

Capillaries

All of the above

Find the correct path of blood circulation.

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Left atrium, left ventricle, lungs, right atrium, right ventricle, body

Right atrium, right ventricle, lungs, left atrium, left ventricle ,body

Left atrium, left ventricle, right atrium, right ventricle, lungs body

Right atrium, lungs, right ventricle, left atrium, body , left ventricle

Which of the following structures are not cells.

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Lymophocytes

Eosinophils

Monocytes

Platelets

Which of these statements is correct about the circulatory system?

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It transports hormones

Capillaries have thicker walls than veins

Systemic circulation carries blood to and from the lunges

All of the above are true

A cubic milimeter blood of male contains RBC:

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5 - 5.5 million

4-4.5 million

3-4 million

None of the above

When do the atria contract?

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Before diastole

After systole

During diastole

During systole

Trace the pathway of water from the soil through the plant to be the atmosphere:

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Endodermis, cortex , epidermis , xylem , intercellular spaces in mesophyll, stomata

Epidermis, endodermis , phloem, cortex of leaf, intercellular spaces of mesophyll, stomatta

Root hairs, epidermis , Cortex, xylem, endodermis, intercellular spaces in mesophyll, stomata

Root hairs, Cortex, endodermis ,xylem,intercellular spaces in mesophyll, stomata

In most plants, the food is transported in the form of:

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Glucose

Sucrose

Starch

Proteins

The amount of plasma in blood is:

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35%

45%

55%

65%

In most plants the food is transported in the form of:

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Glucose

Sucrose

Starch

Proteins

Blood is composed of ................. parts.

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One

Two

Three

fOUR

Which of the following is a type of leukocyte?

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Macrophage

Eosinophil

Monocyte

All of the above

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