Explain the four major functions of the kidneys and how they relate to homeostasis.
What will be an ideal response?
1. The kidneys excrete metabolic wastes.
2. They maintain the water-salt balance, which impacts blood volume and blood pressure.
3. They maintain the acid-base balance which regulates the pH balance.
4. They secrete hormones which have a wide array of functions within the body.
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You observe a chimpanzee use a stick to dig termites out from a nest. How could you determine if this digging behavior is learned or innate?
A. Take the stick away and see if the chimp picks up another one. B. Show the chimp termite mounds of different sizes and see which one he/she chooses for digging. C. Provide the chimp with lots of different foods and see if he/she still digs for termites. D. Raise chimps in isolation from other chimps and see if the chimps still exhibit the behavior. E. Raise chimps in groups and see if the chimps still exhibit the behavior.
The percentage of the human genome that is protein-coding is less than _____
a. 2% b. 20% c. 30% d. 50% e. 85%
A theta (?) structure is characteristic of
a. a circular replicon in the middle of replication. b. a replication bubble at the end of a linear chromosome. c. a replication fork. d. the concatenated replication products of a circular replicon. e. a replication bubble in the middle of a linear chromosome.
What is the basis of the typical -70 mV resting potential in neurons? Rank the factors in order from most important to least important.____ K+ equilibrium potential____ Ca+2 equilibrium potential____ Na+ equilibrium potential
What will be an ideal response?