What would happen if the trachea did not have cartilaginous rings?
A) The trachea would collapse.
B) Sense of smell would be lost, and food would taste funny.
C) Incoming air would not be humidified.
D) Incoming air would not undergo filtration.
Answer: A
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Endoplasmic reticulum (ER) with many ribosomes attached is called ________ ER, whereas endoplasmic reticulum that is mostly devoid of ribosomes is called ________ ER.
Fill in the blank(s) with the appropriate word(s).
Nile blue is used to test for the presence of amino acids
a. True b. False
Which of the following is an important difference between the rough endoplasmic reticulum and the smooth endoplasmic reticulum?
a) the rough endoplasmic reticulum is the site of much protein folding and packaging, whereas the smooth endoplasmic reticulum is the site of lipid synthesis b) the smooth endoplasmic reticulum is the site of protein synthesis, folding, and packaging, whereas the rough endoplasmic reticulum is the site of lipid synthesis c) the rough endoplasmic reticulum is covered in ribosomes, whereas the smooth endoplasmic reticulum is not d) the rough endoplasmic reticulum is studded with chloroplast, whereas the smooth endoplasmic reticulum is not e) both the first and third answer choices are correct
Early in the twentieth century, Walter Sutton and Theodor Boveri noted that the behavior of chromosomes during meiosis is identical to the behavior of genes during gamete formation. They proposed that genes are carried on chromosomes, which led to the
basis of the ________. A) Chromosome Theory of Inheritance B) First Law of Thermodynamics C) Chromosomal Maintenance Theory D) Law of Segregation E) Law of Independent Assortment