FINAL BIOLOGY 102 EXAM: BIOLOGY 102
ESSENTIAL BIOLOGY II W/LAB, 2025/2026
WITH CORRECT/ACCURATE ANSWERS
PORTAGE LEARNING
Typically covers all material from the entire term, integrating concepts
across various biological fields.
ESSENTIAL BIOLOGY II W/LAB
The corpus luteum: - CORRECT-ANSWERS--is the initial source of
progesterone during pregnancy.
Your lungs are derived from which of the following embryonic germ
layers? - CORRECT-ANSWERS--the endoderm >>>
Explanation
The respiratory system begins to develop around the fourth week of
gestation as a ventral outgrowth of the primitive foregut, which is an
endoderm-derived structure.
The epithelial lining of the trachea, bronchi, and alveoli (the air
sacs of the lungs) are all formed from this endoderm.
However, other supporting structures of the lungs, such as the
cartilage, muscle, connective tissue, and vasculature, are derived
from the surrounding mesoderm.
,Infertility of two prospective parents is defined as: - CORRECT-ANSWERS--
the inability to become pregnant after one year of trying.
What structure in a sperm cell contains what might be called "a cap or
bag containing digestive enzymes"? - CORRECT-ANSWERS--acrosome
After ovulation, approximately halfway through the female menstrual
cycle, levels of progesterone rise sharply. What is the primary function of
progesterone at this point in the menstrual cycle? - CORRECT-ANSWERS--
to maintain the endometrial lining of the uterus, where a fertilized egg
can implant
Which type of reproduction is disadvantageous when the environment is
ever-changing? - CORRECT-ANSWERS--Answer a), c), and d) are all
disadvantageous.
The SRY, or sex determining gene, is most noted for: - CORRECT-
ANSWERS--causing an embryo to develop into a boy.
A disadvantage of asexual reproduction is that: - CORRECT-ANSWERS--it
results in less genetic variation in a population.
Which of the following is TRUE about reproductive-related technology? -
CORRECT-ANSWERS--Sperm can be sorted in the laboratory into those
containing an X or a Y.
What is the most reliable signal that a woman is about to give birth? -
CORRECT-ANSWERS--dilation of the cervix up to about 10 cm
,The formation of a multicellular organism from a fertilized egg is called
development. Development is accomplished through the processes of: -
CORRECT-ANSWERS--mitosis and cytokinesis.
Which of the following statements about sexually transmitted diseases is
true? - CORRECT-ANSWERS--STDs can be transmitted through the mouth
or the anus.
During the course of your study of an animal species that alternates
between sexually and asexually reproducing stages, you observe a long
period of time during which your study animals reproduce asexually
without any evidence of sexual reproduction. Which of the following
strategies would you first use to attempt to induce sexual behavior? -
CORRECT-ANSWERS--Gradually make the environment less favorable.
Aside from the need to find a partner, which of the following is another
major DISADVANTAGE of sexual reproduction? - CORRECT-ANSWERS--
Finding a mate can consume lots of energy and time.
In humans, as well as mammals, birds, and reptiles, the growing embryo
is surrounded by a water-filled chamber to keep it wet and to provide
insulation and protection. What is this name of the membrane that
surrounds this chamber? - CORRECT-ANSWERS--amnion
You are trying to determine whether or not a woman is pregnant based on
hormone levels in her body. Based on what you know about hormone
activity in the female reproductive system, which of the following
hormones would be the best indicator of pregnancy? - CORRECT-
ANSWERS--human chorionic gonadotropin (hCG)
, The "toxic semen" found in fruit flies has been discovered to have which
of the following effects? - CORRECT-ANSWERS--Semen from a male fly
suppresses further mating in a female for several days.
Tying off the vas deferens will: - CORRECT-ANSWERS--None of the above.
The three embryonic germ layers formed during gastrulation are the: -
CORRECT-ANSWERS--ectoderm, endoderm, and mesoderm.
Which of the following statements is true about external fertilization in
most species? - CORRECT-ANSWERS--All of the above are true.
What is colostrum? - CORRECT-ANSWERS--the substance that is released
when a woman first begins to lactate
What process allows sperm to penetrate the zona pellucida surrounding
the mature egg just before fertilization? - CORRECT-ANSWERS--sperm
bind to the zona pellucida, triggering the egg response to open its
membrane like a gate
During the human menstrual cycle, a sudden increase in which of the
following hormones causes the follicle to rupture, releasing the egg from
the ovary? - CORRECT-ANSWERS--luteinizing hormone
The circular muscle at the opening to the uterus in human females is
called the: - CORRECT-ANSWERS--cervix.
During ovulation in human females, the mature egg is released from the
, travels through the where fertilization occurs, and embeds in
the . - CORRECT-ANSWERS--follicle, Fallopian tube, uterus
ESSENTIAL BIOLOGY II W/LAB, 2025/2026
WITH CORRECT/ACCURATE ANSWERS
PORTAGE LEARNING
Typically covers all material from the entire term, integrating concepts
across various biological fields.
ESSENTIAL BIOLOGY II W/LAB
The corpus luteum: - CORRECT-ANSWERS--is the initial source of
progesterone during pregnancy.
Your lungs are derived from which of the following embryonic germ
layers? - CORRECT-ANSWERS--the endoderm >>>
Explanation
The respiratory system begins to develop around the fourth week of
gestation as a ventral outgrowth of the primitive foregut, which is an
endoderm-derived structure.
The epithelial lining of the trachea, bronchi, and alveoli (the air
sacs of the lungs) are all formed from this endoderm.
However, other supporting structures of the lungs, such as the
cartilage, muscle, connective tissue, and vasculature, are derived
from the surrounding mesoderm.
,Infertility of two prospective parents is defined as: - CORRECT-ANSWERS--
the inability to become pregnant after one year of trying.
What structure in a sperm cell contains what might be called "a cap or
bag containing digestive enzymes"? - CORRECT-ANSWERS--acrosome
After ovulation, approximately halfway through the female menstrual
cycle, levels of progesterone rise sharply. What is the primary function of
progesterone at this point in the menstrual cycle? - CORRECT-ANSWERS--
to maintain the endometrial lining of the uterus, where a fertilized egg
can implant
Which type of reproduction is disadvantageous when the environment is
ever-changing? - CORRECT-ANSWERS--Answer a), c), and d) are all
disadvantageous.
The SRY, or sex determining gene, is most noted for: - CORRECT-
ANSWERS--causing an embryo to develop into a boy.
A disadvantage of asexual reproduction is that: - CORRECT-ANSWERS--it
results in less genetic variation in a population.
Which of the following is TRUE about reproductive-related technology? -
CORRECT-ANSWERS--Sperm can be sorted in the laboratory into those
containing an X or a Y.
What is the most reliable signal that a woman is about to give birth? -
CORRECT-ANSWERS--dilation of the cervix up to about 10 cm
,The formation of a multicellular organism from a fertilized egg is called
development. Development is accomplished through the processes of: -
CORRECT-ANSWERS--mitosis and cytokinesis.
Which of the following statements about sexually transmitted diseases is
true? - CORRECT-ANSWERS--STDs can be transmitted through the mouth
or the anus.
During the course of your study of an animal species that alternates
between sexually and asexually reproducing stages, you observe a long
period of time during which your study animals reproduce asexually
without any evidence of sexual reproduction. Which of the following
strategies would you first use to attempt to induce sexual behavior? -
CORRECT-ANSWERS--Gradually make the environment less favorable.
Aside from the need to find a partner, which of the following is another
major DISADVANTAGE of sexual reproduction? - CORRECT-ANSWERS--
Finding a mate can consume lots of energy and time.
In humans, as well as mammals, birds, and reptiles, the growing embryo
is surrounded by a water-filled chamber to keep it wet and to provide
insulation and protection. What is this name of the membrane that
surrounds this chamber? - CORRECT-ANSWERS--amnion
You are trying to determine whether or not a woman is pregnant based on
hormone levels in her body. Based on what you know about hormone
activity in the female reproductive system, which of the following
hormones would be the best indicator of pregnancy? - CORRECT-
ANSWERS--human chorionic gonadotropin (hCG)
, The "toxic semen" found in fruit flies has been discovered to have which
of the following effects? - CORRECT-ANSWERS--Semen from a male fly
suppresses further mating in a female for several days.
Tying off the vas deferens will: - CORRECT-ANSWERS--None of the above.
The three embryonic germ layers formed during gastrulation are the: -
CORRECT-ANSWERS--ectoderm, endoderm, and mesoderm.
Which of the following statements is true about external fertilization in
most species? - CORRECT-ANSWERS--All of the above are true.
What is colostrum? - CORRECT-ANSWERS--the substance that is released
when a woman first begins to lactate
What process allows sperm to penetrate the zona pellucida surrounding
the mature egg just before fertilization? - CORRECT-ANSWERS--sperm
bind to the zona pellucida, triggering the egg response to open its
membrane like a gate
During the human menstrual cycle, a sudden increase in which of the
following hormones causes the follicle to rupture, releasing the egg from
the ovary? - CORRECT-ANSWERS--luteinizing hormone
The circular muscle at the opening to the uterus in human females is
called the: - CORRECT-ANSWERS--cervix.
During ovulation in human females, the mature egg is released from the
, travels through the where fertilization occurs, and embeds in
the . - CORRECT-ANSWERS--follicle, Fallopian tube, uterus
