Which of the following small intestine cells secretes lysozyme?
a) Goblet cells
b) Absorptive cells
c) Mucosa cells
d) Paneth cells
e) S cells
Answer: d) Paneth cells
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On which part of the carbon cycle have humans had the greatest impact?
A. return of CO2 to the atmosphere by oxidation of ancient organic matter B. capture of atmospheric CO2 by chemical weathering of rocks C. storage of CO2 through biomineralization in the oceans D. deposition of organic carbon in deep sea sediments E. All of the answer options have been greatly impacted by humans.
Your father is heterozygous for the recessive disorder phenylketonuria (PKU). You know your mom
has two "good" alleles. What is the probability that you will have the disorder?
a. 0% but you will have a 50% chance of passing the "bad" allele on to your children b. 0% and you don't need to worry about passing the "bad" allele on to your children c. 25% for you and 25% for your children d. 50% for you and 50% for your children e. 50% for you and 25% that you'll pass the "bad" allele on to your children
Which structures have the same length, shape, and centromere location?
a. karyotypes b. histones c. bacteriophages d. nucleosomes e. autosome pairs
Refer to the accompanying figure. Which of these lungs would be found in reptiles?
a. 1 only b. 2 only c. 3 only d. 4 only e. both 1 and 2