The channel between the bladder and the body surface is the _____
a. renal medulla
b. fallopian tube
c. urethra
d. ureter
e. epididymis
ANSWER: c
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Chitin is abundant in two distantly related organisms, the _____.
A) Bacteria and Eukarya B) fungi and arthropods such as spiders, crabs, and insects C) birds and fish D) protists and plants E) plants and animals
What is the biological risk of using salt on icy roads in parts of the country that have a cold winter season?
a. Plant root cells will grow in excess to try to reach fresh water. b. Plant cells will take on excess water from the melted ice and become turgid. c. Salt is in limited supply in the ecosystem and this type of overuse will make it even more so. d. The salt has the risk of leeching into the ground and creating a hypertonic environment for plant cells.
When considered as a root cause for cancer, which of the following is linked to at least 17 types of human cancer?
A) eating a high-fat diet B) not exercising regularly C) eating a low-fat diet D) smoking
Briefly describe the life cycle of an earthworm.
What will be an ideal response?