Chapter 17 Vocabulary words Flashcards

0
Q

The reproductive cell from the female that joins with a sperm cell to make a new life.

A

Egg cell

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1
Q

The joining together of a male sperm cell and a female egg cell.

A

Fertilization

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2
Q

The cell from the male that enters the egg cell during fertilization.

A

Sperm cell

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3
Q

A pear-shaped organ inside a females body where the embryo is protected and nourished.

A

Uterus

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4
Q

The developing organism from fertilization to about the eight week of its development.

A

Embryo

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5
Q

The developing organism from the end of the eighth week until birth.

A

Fetus

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6
Q

A thick, rich tissue that lines the walls of the uterus during pregnancy and that nourishes the fetus.

A

Placenta

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7
Q

A tube that connects the mothers placenta to the fetus.

A

Umbilical cord

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8
Q

The entry to the uterus.

A

Cervix

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9
Q

The passing of traits from parents to their children.

A

Heredity

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10
Q

A threadlike structures found within the nucleus of a cell that carry the codes for inherited traits.

A

Chromosomes

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11
Q

The basic units of heredity.

A

Genes

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12
Q

Is a disorder caused partly or completely by a defect in genes.

A

Genetic disorder

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13
Q

The sum total of a persons surroundings.

A

Environment

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14
Q

Steps taken to provide for the health of a pregnant female and her baby.

A

Parental care

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15
Q

Abnormalities present at cause physical or mental disability or death

A

Birth defects

16
Q

Events that need to happen in order for you to grow toward becoming a healthy, mature adult.

A

Developmental task

17
Q

The first year of life.

A

Infancy

18
Q

Are children between the ages of one and three who are learning to walk and talk.

A

Toddlers

19
Q

Children between the ages of three and five.

A

Preschoolers

20
Q

Is the time when you start developing physical characteristics of adults of your gender.

A

Puberty

21
Q

Age measured in years.

A

Chronological age

22
Q

Age determined by how well various body parts are working.

A

Biological age

23
Q

Age measured by your lifestyle and the connections you have with others.

A

Social age