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Science > 4th Nine Weeks Test > Flashcards

4th Nine Weeks Test Flashcards

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Biology 101 flashcards
1
Q

Needed substances are carried to the body cells by

A

Blood

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2
Q

Blood vessels that carry blood away from the heart are called

A

Arteries

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3
Q

Which component of blood carries oxygen to the body cells

A

Red blood cells

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4
Q

Which of these heart structures prevents blood from flowing backward

A

Valve

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5
Q

When ventricles contract, blood is pumped

A

Out of the heart

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6
Q

The function of white blood cells is to

A

Fight disease

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7
Q

Which of the following is NOT a function of the digestive system

A

Obtain oxygen

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8
Q

What structures enable the small intestine to absorb large amounts of nutrients

A

Villi

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9
Q

What substance in the mouth contains an enzyme that begins chemical digestion

A

Saliva

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10
Q

What process involves muscle contractions that move food through the esophagus

A

Peristalsis

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11
Q

In what pet of the body does most chemical digestion take place

A

Small intestine

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12
Q

What organ produces bile

A

Liver

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13
Q

The role of the respiratory system is to bring what substance into the body

A

Oxygen

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14
Q

What is the main organ in the respiratory system

A

Lungs

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15
Q

What is the main function of the excretory system

A

To collect and remove wastes from the body

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16
Q

Which organ of the excretory system stores urine until the body is ready to eliminate it

A

Urinary bladder

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17
Q

Under normal conditions, what is found in urine

A

Urea

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18
Q

What function do the kidneys perform

A

Remove urea and excess water

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19
Q

What is not a function of the cardiovascular system

A

Controlling many body processes by means of chemicals

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20
Q

The endocrine system ask on the body through chemical products called

A

Hormones

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21
Q

A change or signal in the environment that can make an organism react is called

A

Stimulus

22
Q

What part of a neuron carries nerve impulses away from the cell body

A

Exxon

23
Q

Gases pass in and out of a plant through

A

Leaves

24
Q

What part of a plant carries substances between the roots and the leaves

A

Stem

25
Q

What is not a route function in a plant

A

Produce food

26
Q

A flowers female reproductive parts are called

A

Pistils

27
Q

A motor neuron sends an impulse

A

A muscle or gland

28
Q

A cell that carries information through your nervous system is

A

Neuron

29
Q

The sick column of nerve tissue that links the brain to most of the nerves in the peripheral nervous system is the

A

Spinal cord

30
Q

An automatic response of the body that occurs very rapidly and without conscious control is called

A

Reflects

31
Q

The chemical product of an endocrine gland is called

A

Hormone

32
Q

The process by which an organism’s internal environment is kept stable in spite of changes in the Extertal environment is called

A

Homeostasis

33
Q

What structure directs the activities of a cell

A

Nucleus

34
Q

Messages are carried back and forth between the brain and other parts of the body by

A

Nervous tissue

35
Q

What organ system makes blood cells

A

Skeletal system

36
Q

Which of the following is not a function of the skeleton

A

Obtaining oxygen

37
Q

Much of a newborn babies skeleton is made of

A

Cartilage

38
Q

What kind of motion is possible with a hinge joint

A

Forward and backward

39
Q

Which type of muscle is found only in the heart

A

Cardiac muscle

40
Q

List the levels of organization from smallest to largest

A

Cells, tissue, organs, organ system

41
Q

Skeletal muscles must work in pairs because

A

Muscle cells can only contract

42
Q

How does the skin protect the body from disease

A

By keeping disease causing microorganisms from entering the body

43
Q

What is the smallest level of organization in the body

A

Cells

44
Q

The bones that form the backbone are called

A

Vertebrae

45
Q

Egg

A

The female sex cell

46
Q

Sperm

A

The male sex cell

47
Q

Fertilization

A

The joining of a sperm and an egg

48
Q

Reproduction

A

The process by which living things produce new individuals of the same type

49
Q

Zygote

A

A fertilized egg

50
Q

Chromosome

A

Carries the information that controls inherited characteristics

Science (8 decks)

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