Question 1

The placenta takes over progesterone production at which developmental week? ​

Accepted Answer

A) 4 
B) 8 
C) 12 
D) 16 
E) 20 
A) 4 
B) 8 
C) 12 
D) 16 
E) 20 C

Question 2

The average life expectancy for males in the United States is ____.

Accepted Answer

A) 80 years 
B) 79 years 
C) 76 years 
D) 74 years 
E) 65 years 
A) 80 years 
B) 79 years 
C) 76 years 
D) 74 years 
E) 65 years D

Question 3

What term describes the implantation of the blastocyst in a place other than the uterus? ​

Accepted Answer

A) menstruation 
B) gastrulation 
C) ectopic pregnancy 
D) endometrial pregnancy 
E) conjoined pregnancy 
A) menstruation 
B) gastrulation 
C) ectopic pregnancy 
D) endometrial pregnancy 
E) conjoined pregnancy C

Question 4

Match between columns
                        Premises: gives rise to blood vessels of the umbilical cord
the outer embryonic membrane
creates a fluid-filled sac around the embryo 
short-lived membrane, gives rise to early germ cells 
links embryo to placenta

Accepted Answer

The Answer of amnion and chorion and yolk sac and is...

Question 5

Implantation occur how many days after fertilization? ​

Accepted Answer

A) 1 day 
B) 7 days 
C) 14 days 
D) 21 days 
E) 28 days 
A) 1 day 
B) 7 days 
C) 14 days 
D) 21 days 
E) 28 days

Question 6

Blood vessels show which sign of aging? ​

Accepted Answer

A) Elastin fibers in their walls are replaced by collagen or calcium deposits. 
B) The muscles become softer and expand more easily. 
C) The smooth muscle layer constricts more readily. 
D) Elastin fibers double in quantity. 
E) The veins develop more valves. 
A) Elastin fibers in their walls are replaced by collagen or calcium deposits. 
B) The muscles become softer and expand more easily. 
C) The smooth muscle layer constricts more readily. 
D) Elastin fibers double in quantity. 
E) The veins develop more valves.

Question 7

Germ cells are ____. ​

Accepted Answer

A) found in the zygote 
B) destined to become body tissues and organs 
C) identical to one another 
D) found within the egg prior to fertilization 
E) larger in size than the original egg 
A) found in the zygote 
B) destined to become body tissues and organs 
C) identical to one another 
D) found within the egg prior to fertilization 
E) larger in size than the original egg

Question 8

The cells within a morula are referred to as a(n)____. ​

Accepted Answer

A) stem cells 
B) endoderm 
C) ectoderm 
D) blastomeres 
E) mesoderm 
A) stem cells 
B) endoderm 
C) ectoderm 
D) blastomeres 
E) mesoderm

Question 9

A deficiency of which nutrient will interfere with the proper development of the neural tube? ​

Accepted Answer

A) vitamin A 
B) vitamin D 
C) vitamin C 
D) vitamin B12 
E) folic acid 
A) vitamin A 
B) vitamin D 
C) vitamin C 
D) vitamin B12 
E) folic acid

Question 10

Which of the following is TRUE of fetal circulation? ​

Accepted Answer

A) The allantois carries fetal blood to the placenta. 
B) Fetal hemoglobin binds oxygen more easily than the adult form. 
C) Fetal blood mixes with maternal blood to ensure proper gas exchange. 
D) Blood flow into the lungs is 50% of adult flow. 
E) The liver, heart and lungs receive the majority of blood flow. 
A) The allantois carries fetal blood to the placenta. 
B) Fetal hemoglobin binds oxygen more easily than the adult form. 
C) Fetal blood mixes with maternal blood to ensure proper gas exchange. 
D) Blood flow into the lungs is 50% of adult flow. 
E) The liver, heart and lungs receive the majority of blood flow.

Question 11

At which gestational week does sexual differentiation begin? ​

Accepted Answer

A) 5 
B) 7 
C) 10 
D) 12 
E) 14 
A) 5 
B) 7 
C) 10 
D) 12 
E) 14

Question 12

Blood entering the fetal right atrium bypasses the lungs through the ____. ​

Accepted Answer

A) umbilical arteries 
B) umbilical veins 
C) ductus venosus 
D) foramen ovale 
E) ductus arteriosus 
A) umbilical arteries 
B) umbilical veins 
C) ductus venosus 
D) foramen ovale 
E) ductus arteriosus

Question 13

Genetic testing procedure that can occur as early as the eight week of pregnancy is ____. ​

Accepted Answer

A) amniocentesis 
B) chorionic villus sample 
C) endoscopy 
D) preimplantation diagnosis 
E) sonography 
A) amniocentesis 
B) chorionic villus sample 
C) endoscopy 
D) preimplantation diagnosis 
E) sonography

Question 14

The hormones that are most directly involved with the process of birth are ____. ​

Accepted Answer

A) estrogen and oxytocin 
B) oxytocin and prostaglandins 
C) oxytocin and progesterone 
D) prolactin and estrogen 
E) prostaglandin and progesterone 
A) estrogen and oxytocin 
B) oxytocin and prostaglandins 
C) oxytocin and progesterone 
D) prolactin and estrogen 
E) prostaglandin and progesterone

Question 15

When two eggs are fertilized at the same time what type of twins are formed? ​

Accepted Answer

A) identical twins 
B) fraternal twins 
C) always same sex twins 
D) conjoined twins 
E) monozygotic 
A) identical twins 
B) fraternal twins 
C) always same sex twins 
D) conjoined twins 
E) monozygotic

Question 16

Which disease may produce a malformed embryo if the mother develops the disease early in pregnancy?

Accepted Answer

A) rubella (German measles) 
B) chicken pox 
C) red measles 
D) hepatitis 
E) mumps 
A) rubella (German measles) 
B) chicken pox 
C) red measles 
D) hepatitis 
E) mumps

Question 17

Which of the following occurs in all three stages of the birthing process, or "labor"? ​

Accepted Answer

A) dilation 
B) delivery 
C) contractions 
D) afterbirth 
E) rupture of amnion 
A) dilation 
B) delivery 
C) contractions 
D) afterbirth 
E) rupture of amnion

Question 18

What developmental landmark occurs at day 25? ​

Accepted Answer

A) primitive streak 
B) neural tube 
C) yolk sac 
D) pharyngeal arches 
E) somites 
A) primitive streak 
B) neural tube 
C) yolk sac 
D) pharyngeal arches 
E) somites

Question 19

Which of the following is necessary for the fetus to develop female gonads? ​

Accepted Answer

A) lack of testosterone exposure 
B) presence of Y chromosome 
C) estrogen 
D) progesterone 
E) both estrogen and progesterone 
A) lack of testosterone exposure 
B) presence of Y chromosome 
C) estrogen 
D) progesterone 
E) both estrogen and progesterone

Question 20

When only a small amount of ____ remain following several cell divisions, a cell stops dividing and dies.

Accepted Answer

A) centromeres 
B) centrosomes 
C) acrosomes 
D) telomeres 
E) isomers 
A) centromeres 
B) centrosomes 
C) acrosomes 
D) telomeres 
E) isomers

Exam 17: Development and Aging

The placenta takes over progesterone production at which developmental week? ​

The average life expectancy for males in the United States is ____.

What term describes the implantation of the blastocyst in a place other than the uterus? ​

Implantation occur how many days after fertilization? ​

Blood vessels show which sign of aging? ​

Germ cells are ____. ​

The cells within a morula are referred to as a(n)____. ​

A deficiency of which nutrient will interfere with the proper development of the neural tube? ​

Which of the following is TRUE of fetal circulation? ​

At which gestational week does sexual differentiation begin? ​

Blood entering the fetal right atrium bypasses the lungs through the ____. ​

Genetic testing procedure that can occur as early as the eight week of pregnancy is ____. ​

The hormones that are most directly involved with the process of birth are ____. ​

When two eggs are fertilized at the same time what type of twins are formed? ​

Which disease may produce a malformed embryo if the mother develops the disease early in pregnancy?

Which of the following occurs in all three stages of the birthing process, or "labor"? ​

What developmental landmark occurs at day 25? ​

Which of the following is necessary for the fetus to develop female gonads? ​

When only a small amount of ____ remain following several cell divisions, a cell stops dividing and dies.

Learning About Human Biology

Chemistry of Life

Cells and How They Work

Tissues, Organs, and Organ Systems

The Skeletal System

The Muscular System

Circulation: the Heart and Blood Vessels

Blood

Immunity and Disease

The Respiratory System

Digestion and Nutrition

The Urinary System

The Nervous System

Sensory Systems

The Endocrine System

Reproductive Systems

Cell Reproduction

Introduction to Genetics

Chromosomes and Human Genetics

DNA Genes and Biotechnology

Genes and Disease: Cancer

Principles of Evolution

Principles of Ecology

Human Impacts on the Biosphere

Filters

The placenta takes over progesterone production at which developmental week?

What term describes the implantation of the blastocyst in a place other than the uterus?

Implantation occur how many days after fertilization?

Blood vessels show which sign of aging?

Germ cells are ____.

The cells within a morula are referred to as a(n)____.

A deficiency of which nutrient will interfere with the proper development of the neural tube?

Which of the following is TRUE of fetal circulation?

At which gestational week does sexual differentiation begin?

Blood entering the fetal right atrium bypasses the lungs through the ____.

Genetic testing procedure that can occur as early as the eight week of pregnancy is ____.

The hormones that are most directly involved with the process of birth are ____.

When two eggs are fertilized at the same time what type of twins are formed?

Which of the following occurs in all three stages of the birthing process, or "labor"?

What developmental landmark occurs at day 25?

Which of the following is necessary for the fetus to develop female gonads?