Define the underlined terms in the following case study. The clinic admitted for observation a Rattus rattus specimen believed to have been domesticated following research use. According to the owner, the rodent, which was an albino, had been having difficulty acclimatizing. In addition, the owner expressed concern that, despite its former axenic surroundings, the specimen was a vector arising
from its laboratory use.
What will be an ideal response?
1. Rattus rattus-black rat
2. albino-animal with a white coat and pink eyes
3. acclimatizing-adjusting to a new environment
4. axenic-germ free
5. vector-something that carries disease from one animal to another
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Describe the structure and role of prostaglandins
A) They are a type of leukotrienes released by cells to coordinate local cellular activities and produce pain sensations. B) They are a type of steroid used to maintain the plasma membrane and for cell growth and division. C) They are a type of eicosanoid released by cells to coordinate local cellular activities and produce pain sensations. D) They have a carbohydrate attached to a diglyceride and are used to maintain the plasma membrane. E) They have a carbon-ring structure and are used for producing many steroid hormones.
You are singing a song at karaoke and reach a part that requires a louder, more intense sound. To increase your voice's volume, you
A. change the size of the laryngeal cartilages. B. change the shape of the laryngeal cartilages. C. change the force of the air passing over the vocal cords. D. increase the tension on your vocal cords.
A joint that permits no movement and is described as an interposition of cartilage plates is called a
A) symphysis. B) synovial joint. C) suture. D) meniscus. E) synchondrosis.
Which organelles are filled with powerful enzymes that digest worn-out cell components and destroy microbes?
A) peroxisomes B) mitochondria C) lysosomes D) smooth endoplasmic reticulum