Trace the flow of urine through the following structures
1) bladder
2) renal papilla
3) ureter
4) renal pelvis
5) urethra
a. 4 ? 2 ? 5 ? 1 ? 3
b. 1 ? 2 ? 4 ? 3 ? 5
c. 2 ? 4 ? 3 ? 1 ? 5
d. 2 ? 1 ? 4 ? 3 ? 5
e. 4 ? 1 ? 2 ? 3 ? 5
C
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Use the following figure and information to answer the question(s) below
Fishes that have swim bladders can regulate their density and, thus, their buoyancy. There are two types of swim bladder: physostomous and physoclistous. The ancestral version is the physostomous version, in which the swim bladder is connected to the esophagus via a short tube (see the figure above). The fish fills this version by swimming to the surface, taking gulps of air, and directing them into the swim bladder. Air is removed from this version by "belching." The physoclistous version is more derived, and has lost its connection to the esophagus. Instead, gas enters and leaves the swim bladder via special circulatory mechanisms within the wall of the swim bladder. When a shark stops swimming, it _____. 1. sinks 2. quickly dies 3. oxygenates its blood less effectively A) 1 only B) 2 only C) 3 only D) 1 and 3 E) 1, 2, and 3
Answer the following questions
a. Over time, pressure and heat transformed the compacted organic remains of Carboniferous forests into ____. b. Ancient relatives of ____ and ____ dominated in the Carboniferous forests.
Certain amino acids are called essential because they ________
A) are required for making protein B) cannot be made by the body from other compounds C) store energy D) are required for making nucleic acids
Dr. Jane Doe is investigating how robins navigate during their yearly migration. Which of the following would NOT be a component of a scientific inquiry into this question?
A. Ignoring/discarding results that disagree with her favored hypothesis. B. Proposing one or more potential mechanisms of navigation. C. Exploring the current scientific literature on avian migration. D. Designing an experiment to test one of her proposed mechanisms.