Question 1

As opposed to viviparous animals, _______ animals lay eggs in the environment, and their offspring go through embryonic stages outside the body of the mother.

Accepted Answer

The answer of As opposed to viviparous animals, _______ animals...

Question 2

A major evolutionary step allowing the first reptiles to succeed on land was the development of the _______.

Accepted Answer

The answer of A major evolutionary step allowing the first...

Question 3

In which of the following procedures does fertilization occur within the female reproductive tract?

Accepted Answer

Fertilization occurs within the female reproductive tract in artificial insemination, where sperm is directly introduced into the female reproductive tract. In vitro fertilization and intracytoplasmic sperm injection both involve fertilization outside of the female reproductive tract.

Question 4

A vasectomy is a minor operation that involves removing a small section of the _______ and tying off the loose ends.

Accepted Answer

The vas deferens is the tube that carries sperm from the testes to the urethra. During a vasectomy, a small section of the vas deferens is removed and the loose ends are tied off, preventing the sperm from exiting the body during ejaculation.

Question 5

The corpus luteum secretes the hormones _______ and _______.

Accepted Answer

The answer of The corpus luteum secretes the hormones _______...

Question 6

Females of most mammals have a period of sexual receptivity called _______.

Accepted Answer

The answer of Females of most mammals have a period...

Question 7

The uterus opens into the vagina at a muscular necklike region called the _______.

Accepted Answer

The answer of The uterus opens into the vagina at...

Question 8

Species with separate male and female members are called _______.

Accepted Answer

The answer of Species with separate male and female members...

Question 9

The intrauterine device is a means of birth control that prevents

Accepted Answer

The intrauterine device (IUD) works by preventing implantation of a fertilized egg in the uterus. It does not prevent ovulation, fertilization, ejaculation, or sperm from reaching the egg.

Question 10

A _______ consists of one egg cell and the surrounding ovarian cells.

Accepted Answer

The answer of A _______ consists of one egg cell...

Question 11

Which of the following methods of contraception prevents the egg from entering the uterus?

Accepted Answer

Tubal ligation is the only method among the given options that prevents the egg from entering the uterus. It involves blocking or severing the fallopian tubes, which carry the egg from the ovary to the uterus, thus preventing fertilization.

Question 12

Following fertilization, human chorionic gonadotropin secreted by the _______ keeps the corpus luteum functional.

Accepted Answer

The answer of Following fertilization, human chorionic gonadotropin secreted by...

Question 13

Very early in the life of a new mammalian embryo, a population of cells arises during the first few cell divisions. These special cells, called _______, ultimately end up in the region of the developing gonads, where they become gametes.

Accepted Answer

The answer of Very early in the life of a...

Question 14

In humans, fertilization typically occurs when the egg is located in the _______.

Accepted Answer

The answer of In humans, fertilization typically occurs when the...

Question 15

Which of the following contraceptive methods has a success rate greater than 95 percent?

Accepted Answer

Oral hormones, commonly known as "the pill," have a success rate greater than 95 percent when used correctly and consistently. Spermicidal jellies, condoms, and diaphragms have success rates ranging from 71 to 88 percent when used perfectly, but with typical use their effectiveness can be much lower.

Question 16

In mammals, the species-specific mechanism by which egg and sperm recognize one another is found in the _______.

Accepted Answer

The answer of In mammals, the species-specific mechanism by which...

Question 17

The _______ of the human male contains sperm and secretions from bulbourethral glands, seminal vesicles, and the prostate gland.

Accepted Answer

The answer of The _______ of the human male contains...

Question 18

The enzyme-containing cap at the front of the head of a sperm is called the _______.

Accepted Answer

The answer of The enzyme-containing cap at the front of...

Question 19

The behavior that transfers sperm into the female's reproductive tract is _______.

Accepted Answer

The answer of The behavior that transfers sperm into the...

Question 20

_______ is a specialized type of asexual reproduction in which offspring develop from unfertilized eggs.

Accepted Answer

The answer of _______ is a specialized type of asexual...

Quiz 43: Animal Reproduction