Which of the following statements about the human male reproductive system is false?
A. Constriction of the arteries and dilation of
the veins in the penis causes a change in
blood flow that leads to an erection.
B. The scrotum hangs outside of the
abdominal cavity because spermatogenesis
requires cooler temperatures.
C. Sperm become motile in the epididymis.
D. Both sperm and urine leave the body
through the same structure.
E. The head of the penis is known as the
glans penis.
A
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The sensor kinase for the OmpF: OmpC two-component regulatory system is
A. the MicF RNA. B. the OmpK protein. C. the EnvZ protein. D. None of the choices are correct.
Gene families are composed of homologous genes that have different evolutionary origins but the same function
Indicate whether the statement is true or false.
Gibbons and orangutans are from Asia. Gorillas and chimpanzees are from Africa. How was Charles Darwin able to predict that humans evolved in Africa?
A. He understood that humans and Great Apes were closely related. B. He understood that humans and gorillas are more closely related than humans and orangutans based on anatomical criteria. C. He understood that humans and orangutans are more closely related than humans and gorillas based on anatomical criteria.
Which of the following is a characteristic of Histoplasma capsulatum?
A. It grows in moist soil, rich in nitrogen from bird and bat droppings. B. It is a protozoan. C. It grows in dry, arid soil. D. It is a dermatophyte.