Question 1

During the third trimester of development,the major change that occurs in the growing unborn child is:

Accepted Answer

A)  morphogenesis 
B)  development of the skeleton 
C)  a great increase in size 
D)  formation of legs and arms 
A)  morphogenesis 
B)  development of the skeleton 
C)  a great increase in size 
D)  formation of legs and arms C

Question 2

Why are the testes suspended outside the body in humans?

Accepted Answer

The core temperature inside the body is too warm for the proper development of sperm,so testes are suspended within the scrotum outside the body.There temperatures are 3^°C cooler.

Question 3

In humans,where does fertilization occur?

Accepted Answer

A)  In the ovary 
B)  In the fallopian tubes 
C)  In the vagina 
D)  Externally 
A)  In the ovary 
B)  In the fallopian tubes 
C)  In the vagina 
D)  Externally B

Question 4

The most primitive mammals,the ______________,are oviparous like their reptilian ancestors.

Accepted Answer

The answer of The most primitive mammals,the ______________,are oviparous like...

Question 5

Ovulation in females is triggered by:

Accepted Answer

A)  a mid-cycle surge of luteinizing hormone (LH) 
B)  the build-up of follicle-stimulating hormone (FSH) 
C)  intercourse 
D)  the readiness of the uterus to accept a zygote 
A)  a mid-cycle surge of luteinizing hormone (LH) 
B)  the build-up of follicle-stimulating hormone (FSH) 
C)  intercourse 
D)  the readiness of the uterus to accept a zygote

Question 6

At birth,a human female's gametes are called ova because they are fully mature egg cells ready for ovulation at the onset of puberty.

Accepted Answer

A) True 
 B)False

Question 7

The portion of the Y chromosome that determines male gender is known as _____________.

Accepted Answer

SRY or "sex-determin

Question 8

A human female is most likely to become pregnant on the two days preceding and following ovulation.

Accepted Answer

A) True 
 B)False

Question 9

The lining of the uterus builds up,ready for the implantation of a zygote,when?

Accepted Answer

A)  During the follicular phase 
B)  During ovulation 
C)  During the luteal phase 
D)  At any time 
A)  During the follicular phase 
B)  During ovulation 
C)  During the luteal phase 
D)  At any time

Question 10

All of the following methods of birth control prevent fertilization of the ovum by sperm except:

Accepted Answer

A)  intrauterine devices (IUDs) 
B)  condoms 
C)  birth control pills 
D)  diaphragm 
E)  spermicidal foams or jellies 
A)  intrauterine devices (IUDs) 
B)  condoms 
C)  birth control pills 
D)  diaphragm 
E)  spermicidal foams or jellies

Question 11

During the stage called neurulation,a flexible rod,called a _______________,forms along the midline of the dorsal surface of the embryo.

Accepted Answer

A)  dorsal nerve cord 
B)  neural groove 
C)  somite 
D)  notochord 
A)  dorsal nerve cord 
B)  neural groove 
C)  somite 
D)  notochord

Question 12

What are the advantages of internal fertilization?

Accepted Answer

The advantages of internal fertilization

Question 13

The muscular ring at the base of the uterus is the ___________.

Accepted Answer

The answer of The muscular ring at the base of...

Question 14

Fertilization in sharks takes place internally but in bony fish it occurs in the water.

Accepted Answer

A) True 
 B)False

Question 15

The monthly cycle of a human female is more accurately called the ______________ cycle.

Accepted Answer

The answer of The monthly cycle of a human female...

Question 16

Which sexually transmitted disease if not treated can lead to blindness,heart disease and mental deficiency?

Accepted Answer

A)  Syphilis 
B)  Genital herpes 
C)  Gonorrhea 
D)  Chlamydia 
A)  Syphilis 
B)  Genital herpes 
C)  Gonorrhea 
D)  Chlamydia

Question 17

A person with genital herpes can spread the virus both when lesions are present,as well as when not visible.

Accepted Answer

A) True 
 B)False

Question 18

The secondary oocyte does not complete the second meiotic division until:

Accepted Answer

A)  ovulation 
B)  puberty 
C)  fertilization 
D)  birth 
A)  ovulation 
B)  puberty 
C)  fertilization 
D)  birth

Question 19

Why are shelled eggs evolutionarily advantageous?

Accepted Answer

Shelled eggs can be laid on dr

Question 20

How many sperm cells are produced for every one primary spermatocyte?

Accepted Answer

A)  2 
B)  4 
C)  8 
D)  12 
A)  2 
B)  4 
C)  8 
D)  12

Exam 31: Reproduction and Development

During the third trimester of development,the major change that occurs in the growing unborn child is:

Why are the testes suspended outside the body in humans?

In humans,where does fertilization occur?

The most primitive mammals,the ______________,are oviparous like their reptilian ancestors.

Ovulation in females is triggered by:

At birth,a human female's gametes are called ova because they are fully mature egg cells ready for ovulation at the onset of puberty.

The portion of the Y chromosome that determines male gender is known as _____________.

A human female is most likely to become pregnant on the two days preceding and following ovulation.

The lining of the uterus builds up,ready for the implantation of a zygote,when?

All of the following methods of birth control prevent fertilization of the ovum by sperm except:

During the stage called neurulation,a flexible rod,called a _______________,forms along the midline of the dorsal surface of the embryo.

What are the advantages of internal fertilization?

The muscular ring at the base of the uterus is the ___________.

Fertilization in sharks takes place internally but in bony fish it occurs in the water.

The monthly cycle of a human female is more accurately called the ______________ cycle.

Which sexually transmitted disease if not treated can lead to blindness,heart disease and mental deficiency?

A person with genital herpes can spread the virus both when lesions are present,as well as when not visible.

The secondary oocyte does not complete the second meiotic division until:

Why are shelled eggs evolutionarily advantageous?

How many sperm cells are produced for every one primary spermatocyte?

The Science of Biology

The Chemistry of Life

Molecules of Life

Cells

Energy and Life

Photosynthesis: Acquiring Energy From the Sun

How Cells Harvest Energy From Food

Mitosis

Meiosis

Foundations of Genetics

DNA: The Genetic Material

How Genes Work

The New Biology

Evolution and Natural Selection

How We Name Living Things

Prokaryotes: The First Single-Celled Creatures

Protists: Advent of the Eukaryotes

Fungi Invade the Land

Evolution of the Animal Phyla

History of the Vertebrates

How Humans Evolved

The Animal Body and How It Moves

Circulation

Respiration

The Path of Food Through the Animal Body

Maintaining the Internal Environment

How the Animal Body Defends Itself

The Nervous System

The Senses

Chemical Signaling Within the Animal Body

Evolution of Plants

Plant Form and Function

Plant Reproduction and Growth

Populations and Communities

Ecosystems

Behavior and the Environment

Human Influences on the Living World

Filters