A man is locked in a small room with a limited supply of oxygen. There is one other animal in
the room with him. Which of the following organisms would ensure the longest survival time
for the man and thus enhance his chances of rescue?
a. 300-kg gorilla
b. 5-g mouse
c. 150-kg Galapagos tortoise
d. 6-g lizard
D
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The large surface area in the gut directly facilitates _____
A) secretion B) absorption C) elimination D) filtration E) temperature regulation
The degree of relatedness between a niece and an uncle is _____, and the degree of relatedness
between first cousins is ______.
a. 0.75; 0.50 b. 0.50; 0.25 c. 0.25; 0.125 d. 0.125; 0.0625 e. 0.0625; 0.03125
In the lac operon, if lactose is present, which of the following occurs?
A. Lactose bind to RNA polymerase, which then binds to the promoter and transcribes the needed genes. B. Lactose binds to the repressor, changing its shape so that it does not bind to the operator. RNA polymerase then transcribes the needed genes. C. Lactose binds to the operon, which attracts RNA polymerase, then transcription of the needed genes occurs. D. Lactose binds to the repressor, changing its shape so that it can bind to the operator and the structural genes are not expressed.
Your professor asks you to explain the difference between a tendon and a ligament. How do you answer?
A. Tendons secure muscles to bones and ligaments secure muscles to other muscles. B. Tendons secure muscles to bones and ligaments secure bones to other bones. C. Tendons are just enlarged ligaments. D. Tendons and ligaments have the same function but are found in different areas of the body. E. Tendons secure muscles to other muscles and ligaments secure bones to other bones.