PORTAGE LEARNING BIOD 152 ACTUAL EXAM
6 WITH CORRECT VERIFIED ANSWERS
GRADED A+ || 100% GUARANTEED PASS
NEWEST VERSION
What is the corona radiata? - Answer Follicle cells surrounding the egg
How long are male and female gametes viable? - Answer Sperm are viable for
3-5 days after ejaculation, depending on the environment, and an egg can survive
for up to 24 hours after ovulation.
Describe the order of development from a fertilized egg to a fetus. - Answer
The zygote (fertilized egg) spends about three to four days undergoing mitosis
in the oviducts forming the morula and another three to four days undergoing
mitosis while unattached in the uterus, forming the blastocyst as the endometrium
prepares for implantation. Upon implantation some cells in the blastocyst begin to
develop into three layers which become the embryo. By the end of week eight the
embryo is considered a fetus.
The presence of _____ in urine will result in a positive pregnancy test taken at
home. - Answer HCG (human chorionic gonadotropin)
Describe the supportive cells formed in the blastocyst. - Answer Other cells of
the blastocyst form supportive cells for embryonic function: the amnion, placenta
and umbilical cord. The amnion forms a sac filled with fluid to cushion and protect
the fetus. The placenta is a temporary organ that carries out nutritive, respiratory,
excretory and endocrine functions for the embryo. The baby continues to grow in
the uterus with nutrition provided by the placenta for nine months until it is time
for delivery. The umbilical cord attaches the embryo to the placenta.
, The skin and nervous tissue develop from the ----------- layer of the blastocyst. -
Answer Ectoderm
The inner endoderm layer forms the _________. - Answer forms the glands
(thyroid, parathyroid and thymus), solid organs (liver and pancreas) and the lining
of the hollow organs of the digestive and respiratory systems.
The cardiovascular system develops from what layer of the blastocyst? - Answer
Mesoderm
Describe the steps of the formation of the neural tube. - Answer The lateral
sides of the ectoderm move together (convergence) forming the epidermis
superficially. The neural fold forms underneath the epidermis, becoming the neural
crest. The neural plate becomes the neural groove and then finally the neural tube
once convergence is complete. The anterior portion of the neural tube becomes the
brain and the rest forms the brainstem and spinal cord.
What supplement is recommended to prevent neural tube defects? - Answer
folic acid
Around what week does the heart begin to have blood flow? - Answer Week 3
During what trimester do fingerprints develop? - Answer 2nd trimester
What trimester do the testes descend into the scrotum? - Answer 3rd trimester
6 WITH CORRECT VERIFIED ANSWERS
GRADED A+ || 100% GUARANTEED PASS
NEWEST VERSION
What is the corona radiata? - Answer Follicle cells surrounding the egg
How long are male and female gametes viable? - Answer Sperm are viable for
3-5 days after ejaculation, depending on the environment, and an egg can survive
for up to 24 hours after ovulation.
Describe the order of development from a fertilized egg to a fetus. - Answer
The zygote (fertilized egg) spends about three to four days undergoing mitosis
in the oviducts forming the morula and another three to four days undergoing
mitosis while unattached in the uterus, forming the blastocyst as the endometrium
prepares for implantation. Upon implantation some cells in the blastocyst begin to
develop into three layers which become the embryo. By the end of week eight the
embryo is considered a fetus.
The presence of _____ in urine will result in a positive pregnancy test taken at
home. - Answer HCG (human chorionic gonadotropin)
Describe the supportive cells formed in the blastocyst. - Answer Other cells of
the blastocyst form supportive cells for embryonic function: the amnion, placenta
and umbilical cord. The amnion forms a sac filled with fluid to cushion and protect
the fetus. The placenta is a temporary organ that carries out nutritive, respiratory,
excretory and endocrine functions for the embryo. The baby continues to grow in
the uterus with nutrition provided by the placenta for nine months until it is time
for delivery. The umbilical cord attaches the embryo to the placenta.
, The skin and nervous tissue develop from the ----------- layer of the blastocyst. -
Answer Ectoderm
The inner endoderm layer forms the _________. - Answer forms the glands
(thyroid, parathyroid and thymus), solid organs (liver and pancreas) and the lining
of the hollow organs of the digestive and respiratory systems.
The cardiovascular system develops from what layer of the blastocyst? - Answer
Mesoderm
Describe the steps of the formation of the neural tube. - Answer The lateral
sides of the ectoderm move together (convergence) forming the epidermis
superficially. The neural fold forms underneath the epidermis, becoming the neural
crest. The neural plate becomes the neural groove and then finally the neural tube
once convergence is complete. The anterior portion of the neural tube becomes the
brain and the rest forms the brainstem and spinal cord.
What supplement is recommended to prevent neural tube defects? - Answer
folic acid
Around what week does the heart begin to have blood flow? - Answer Week 3
During what trimester do fingerprints develop? - Answer 2nd trimester
What trimester do the testes descend into the scrotum? - Answer 3rd trimester
