Lesson 29 Flashcards

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1
Q

a group of cells doing the same kind of work

A

tissue

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2
Q

tissue that allows your body to move

A

muscle tissue

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3
Q

tissue that carries messages between your brain and your body

A

nerve tissue

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4
Q

a group of tissues working together to do a job

A

organ

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5
Q

a group of organs working togheter to do a job

A

system

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6
Q

What are muscles and nerves made up of?

A

tissues

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7
Q

What are lungs, heart, stomach, and brain?

A

organs

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8
Q

The tongue, esophagus, stomach, intestines, and liver are a part of what?

A

digestive system

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9
Q

The prints made by the ridges on your fingertips are called?

A

fingerprints

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10
Q

Name four organs of the human body.

A

lungs, heart, stomach, brain

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11
Q

top layer of skin

A

epidermis

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12
Q

the second layer of skin

A

dermis

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13
Q

makes new skin cells

A

epidermis

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14
Q

where old, dead skin cells fall off

A

epidermis

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15
Q

What is the largest organ?

A

skin

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16
Q

Why did God give us skin?

A

for protection

17
Q

What does the epidermis keep out?

A

germs

18
Q

What does the epidermis keep in?

A

water

19
Q

What is the coloring in the skin called?

A

melanin

20
Q

Explain how cells, tissues, organs, and systems are related to each other.

A

Cells are the smallest living part of an organ. A group of cells doing the same kind of work is a tissue. A group of tissues working together to do a job i an organ. A group of organs working together is called a system.

21
Q

What is a living thing called?

A

organism

22
Q

What is the smallest living part of an organism?

A

cell

23
Q

What is a tool used to see things that are very small?

A

microscope

24
Q

What is a single-cell organism that looks like a blob of jelly and lives in water?

A

amoeba

25
Q

the control center of a cell that directs the cell’s activities

A

nucleus

26
Q

the jellylike fluid that surrounds the nucleus and includes the parts that help the cell live and grow

A

cytoplasm

27
Q

the thin covering that holds the cell together

A

cell membrane

28
Q

the stiff layer on the outside of a plant’s cell membrane; provides shape and support for the plant

A

cell wall

29
Q

What is the main difference between an animal cell and a plant cell?

A

An animal cell has a membrane

30
Q
A