What actually begins the uterine contractions which leads to giving birth?
A. Oxytocin
B. Prolactin
C. Prostaglandins
D. Estrogen
E. The movement of the fetus
Answer: C
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What are desirable characteristics for a gas exchange surface, such as the endothelial cells lining the inside of lung? Select all correct choices
A. a large surface area B. a small surface area C. a thickness of 100 micrometers D. a thickness under 10 micrometers
61. In order for a milk protein to be secreted in mammals, these events must happen in the correct organelle function sequence.
A. DNA transcription in the nucleus-passage of mRNA to the Golgi apparatus; translation of mRNA by the ribosome-conversion of mRNA to proteins by the cytoskeleton B. attached to the smooth endoplasmic reticulum C. DNA transcription in the nucleus-attaching and moving mRNA with cytoskeleton; translation to build proteins in the smooth endoplasmic reticulum-secrete the milk proteins from the cell D. DNA transcription in the nucleus-passage of mRNA out of nucleus; translation of mRNA by the ribosome-packaging of proteins by the endoplasmic reticulum E. production of proteins in the nucleus-passage of proteins through the endoplasmic reticulum; packaging of proteins in the Golgi apparatus; activation of the proteins by the mitochondrion
The extraembryonic membrane that contributes to the formation of the placenta. _____
A) Human chorionic gonadotropin
B) Zygote
C) Chorion
D) Morula
E) Folic acid
F) Fertilization
G) Blastocyst
H) Parturition
I) Cleavage
J) Ovulation
K) Placenta
L) Implantation
Select all of the following ways that the flu virus may impact body systems.A) The breakdown of muscle fibers and accumulation of fluid cause muscle and joint achiness.B) The restriction of blood vessels in the skin conserves heat and results in chills.C) The abundance of cytokines signals the hypothalamus to increase body temperature, resulting in a fever.D) Appetite centers in the brain show reduced action, resulting in a loss of appetite and nausea.E) Toxins produced by the virus break down muscles, resulting in muscle aches and pains.F) A rapid loss of epithelial cells within the respiratory system results in a shortness of breath and rapid heart rate.
What will be an ideal response?