Question 1

During which stage of development do the heart,spine,and brain emerge

Accepted Answer

The embryonic stage is the period of development occurring from conception to eight weeks of gestation. During this stage, the heart, spine, and brain all begin to form and develop. The placental stage occurs later in pregnancy, and the postnatal stage refers to the time after birth. The fetal stage is a later stage of development, occurring after the embryonic stage.

Question 2

Chelsey is pregnant.She is concerned about taking an over-the-counter medication for her allergies.In which stage of prenatal development should she be most concerned

Accepted Answer

During the embryonic stage, which typically lasts from conception to about 8 weeks, the major organs and systems of the body are forming. This is a critical period for development and exposure to certain medications or toxins can potentially cause birth defects or other developmental issues. Therefore, Chelsey should be most concerned about taking medications during this stage of prenatal development.

Question 3

What is the age of viability

Accepted Answer

The age of viability is typically considered to be between 22 and 26 weeks of gestation, when the fetus has developed enough to potentially survive if born prematurely. This is because the fetus has developed enough lung capacity to breathe outside of the womb with medical assistance.

Question 4

Avery is excited by the fact that she has begun to feel her baby kicking and moving in her uterus.In what stage must Avery's pregnancy be if she can feel her baby moving

Accepted Answer

Fetal movements are usually felt by the mother between 16 to 25 weeks of pregnancy, which is considered the fetal stage. At this stage, the baby's organ systems continue to develop, and they grow in size and weight. The neonatal stage refers to the first 28 days of a baby's life outside the womb, the germinal stage is the first stage of pregnancy that lasts for approximately two weeks after conception, and the embryonic stage is from the third to the eighth week of pregnancy, during which major organs and body systems begin to develop.

Question 5

What is the third stage of prenatal development,which lasts from two months through birth

Accepted Answer

The third stage of prenatal development is the fetal stage, which lasts from two months through birth. Choice A (postnatal) refers to the period after birth. Choice B (postgerminal) is not a commonly used term in developmental psychology. Choice D (embryonic) is the second stage of prenatal development, which lasts from conception to two months.

Question 6

Felicia is pregnant,and her blood pressure has become dangerously high.Her doctor wants to deliver her baby by Caesarean section,even though Felicia is only 27 weeks pregnant.What is the likelihood of survival if Felicia's baby is delivered at this point in her pregnancy

Accepted Answer

With advances in neonatal care, babies born at 27 weeks have at least a 75 percent chance of survival, though they may face significant health challenges and require intensive care.

Question 7

Traditionally,psychologists have been interested in development during childhood.What has changed about the focus of developmental psychology in recent decades

Accepted Answer

Over the years, the focus of developmental psychology has broadened to include the entire lifespan, from prenatal development to old age. This shift has been driven by a growing recognition that development continues throughout adulthood, and that earlier experiences can shape later development. This broader focus has also led to new areas of research, such as the study of aging, and has prompted new questions about the ways in which development is influenced by biological, environmental, and cultural factors.

Question 8

What are developmental changes

Accepted Answer

Developmental changes refer to the biological and behavioural changes that occur across the lifespan. These changes can include physical changes, such as growth and maturation, as well as changes in behaviour, social skills, and cognitive abilities. Developmental changes are influenced by both biology and environmental factors and can vary widely across individuals.

Question 9

If a baby is born prematurely and survives,then which developmental stage must that baby have been in

Accepted Answer

A premature baby is one that is born between 24 and 37 weeks of gestation, which means it must have been in the fetal developmental stage. The germinal stage is the first two weeks after fertilization when the fertilized egg implants into the uterus and begins to divide. The embryonic stage is from week 2 to week 8 after fertilization when the embryo begins to form major organs and structures. Postnatal refers to the period after the birth of the baby.

Question 10

What is the longest stage of prenatal development

Accepted Answer

The longest stage of prenatal development is the fetal stage, which lasts from the 9th week after fertilization until birth. The embryonic stage lasts from the 3rd to the 8th week after fertilization. The zygotic stage refers to the very early period of development immediately after fertilization, and the germinal stage refers to the period from fertilization to the implantation of the zygote in the uterine wall. Neither of these stages is as long as the fetal stage.

Question 11

What is smallest unit that contains all of the DNA for a human

Accepted Answer

The zygote is the smallest unit that contains all of the DNA for a human, formed when a sperm cell and an egg cell merge during fertilization.

Question 12

Systems in the body develop at different rates during pregnancy.At what pace of growth will any mechanical or chemical interference with prenatal development have the most serious impact on a developing system

Accepted Answer

When a system is growing rapidly, it is more vulnerable to interference as the cells are dividing and differentiating at a quicker pace. Any disruption during this critical period can lead to significant malformations or defects. Therefore, interfering with rapid growth can have the most serious impact on a developing system.

Question 13

Which terms are used to describe the cluster of developing human cells prior to implantation in the uterine wall,and then after implantation

Accepted Answer

The term "zygote" is used to describe the cluster of developing human cells immediately after fertilization and before implantation. After implantation, the term "embryo" is used until about the eighth week of development, after which it is referred to as a "fetus."

Question 14

What aspect of development is included in the embryonic stage of prenatal development

Accepted Answer

The embryonic stage of prenatal development includes the second through eighth weeks, during which the zygote implants into the uterine wall and undergoes rapid cell division and differentiation, forming the three germ layers and basic organs and structures. The formation of the zygote (A) occurs at fertilization, and implantation (B) occurs during the first week of development. The last seven months of the pregnancy (D) are part of the fetal stage.

Question 15

At what stage does the developing human organism become capable of physical movement

Accepted Answer

During the fetal stage, which begins around 9 weeks after conception and lasts until birth, the developing human organism becomes capable of physical movement. Before this stage, during the germinal and embryonic stages, the organism is still developing its basic structures and organs and is not yet capable of movement. After birth, the postnatal stage begins, but physical movement is already present in the fetus during the fetal stage.

Question 16

Penny conceived a baby seven days ago,and she does not yet know she is pregnant.In what stage is her pregnancy

Accepted Answer

The germinal stage of pregnancy covers the first two weeks after conception, starting from fertilization and implantation. Since Penny conceived only seven days ago, her pregnancy is in the germinal stage.

Question 17

What is the structure that allows oxygen and nutrients to pass from the mother to the fetus

Accepted Answer

The placenta is a specialized organ that develops in the uterus during pregnancy and allows for the exchange of oxygen, nutrients, and waste products between the mother and fetus.

Question 18

During which stage of prenatal development are most miscarriages likely to occur

Accepted Answer

During the embryonic stage, which occurs from weeks 3-8 of prenatal development, many critical developmental processes are taking place. If there are any genetic or environmental factors that interfere with these processes, it can result in miscarriage. It is estimated that up to 80% of miscarriages occur during the embryonic stage.

Question 19

What is the first stage of prenatal development

Accepted Answer

The first stage of prenatal development is the germinal stage, which begins at fertilization and lasts for approximately 2 weeks. During this stage, the zygote begins to divide and implant itself in the wall of the uterus.

Question 20

How do psychologists define development

Accepted Answer

Development refers to the sequence of age-related changes that occur as a person progresses from conception to death, encompassing physical, cognitive, and socioemotional growth and development. This definition includes changes that occur at all stages of life, not just from birth to adulthood.

Quiz 11: A: Human Development Across the Life Span