Exam 13: Human Development: Heredity and Environment

A psychologist explaining differences between two individuals in terms of activity levels,irritability,and distractibility is describing aspects of the inherited part of one's personality known as _______.

When a gene is recessive,it must be paired with a second gene of the same type before its effect will be expressed.

If you slam a door (making a loud noise),an infant is likely to be startled and show the _______ reflex.

Within the nucleus of each sperm and each ovum there are _______ chromosomes.

In the development of motor skills,such as sitting,standing,and walking,the major force guiding the emergence of these skills seems to be

The uniting of the egg and sperm is referred to as

Cephalocaudal means from

When a nipple touches the infant's mouth,the sucking reflex helps the infant obtain needed food.Like other reflexes,this is a(n) _______ action.

Bobby touches his newborn brother's palm,and his little brother takes hold of Bobby's finger and will not let go.This is known as the _______ reflex.

Developmental psychologists are interested in changes in behavior that occur from

Identical twins are less alike as adults than they were as children,which demonstrates the influence of

Sarah is seven months old.Her parents spend three hours a day for five weeks straight holding Sarah up next to furniture in hopes that she will grab onto the furniture and stand by herself.Sarah hates this treatment and screams and cries,but her parents are unyielding.Finally,at the end of the fifth week,Sarah stands up by herself while holding onto the furniture.Her parents smile triumphantly.What have they accomplished here?

Defects that are caused by inherited characteristics are known as

Dr.Santos conducts research involving the changes in the abilities and behaviors of humans from conception to death.Dr.Santos is most likely a(n) _______ psychologist.

Simone was a moderately shy infant whose very extroverted parents rarely gave her time to adapt to a new social situation before thrusting her into another one.This style of parenting led Simone to become an extremely shy child as she entered school.This illustrates that

Gabe,at first,holds the beach ball by pulling the ball to his body with his arms.With increasing age,he begins to hold the ball with his hands and later with his fingertips.This progression of development illustrates

The physical growth and development of the body,brain,and nervous system is called

Regarding teratogens,which of the following statements is TRUE?

Regarding their visual capabilities,babies will be able to see as well as their parents by the age of

The brain of a newborn baby has more dendrites and synapses than an adult brain.