Unit B/Chapter 4

Question 1

Tissue

Answer 1

A group of the same kind of cells that work together

Question 2

Organ

Answer 2

A group of different kinds of tissues that work together

Question 3

Body system

Answer 3

A group of organs that work together to do a certain job

Question 4

Posture

Answer 4

How a person sits, stands or moves

Question 5

Joint

Answer 5

The place where two or more bones meet

Question 6

Bone marrow

Answer 6

A soft tissue in the center of many bones

Question 7

Epidermis

Answer 7

The outer layer of skin cells

Question 8

Dermis

Answer 8

A thick layer of cells below the epidermis

Question 9

Digested

Answer 9

Food that is changed into a form your body can use

Question 10

Circulation

Answer 10

The movement of blood throughout the body

Question 11

Respiration

Answer 11

The process by which cells use oxygen to obtain energy from the breakdown of food.

Question 12

Neuron

Answer 12

A nerve cell

Question 13

Heredity

Answer 13

The traits passed to you from your birth parents

Question 14

Hormone

Answer 14

A chemical produced by the body that controls certain body processes

Question 15

Life cycle

Answer 15

The order of change each living organism passes through during its life.

Question 16

Infancy

Answer 16

The period of growth from birth to one year

Question 17

Childhood

Answer 17

The stage of growth from 1 to 12 years

Question 18

Learning disability

Answer 18

The difference that causes a person to have trouble learning

Question 19

Adolescence

Answer 19

The stage of growth from 12 to 18 years

Question 20

Puberty

Answer 20

The time when a person’s body changes and becomes able to reproduce

Question 21

Adulthood

Answer 21

The stage of growth from 18 to 79 years and beyond

Question 22

Death

Answer 22

The end of the life cycle

Question 23

Cell

Answer 23

The smallest working part of a living thing