Which of the following is the cornea, and what is its function?
a. A—allows light into the eye
b. B—fluid that protects tissue
c. C—has light-absorbing pigments
d. D—receives sensory input
A
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Which cell organelle regulates the movement of molecules in and out of the cell?
a. the nucleus b. the ribosome c. the plasma membrane d. the cytoplasm
Inserting a gene from the hepatitis B virus into yeast so that the yeast produces a viral protein is an example of
A) etiology. B) genetic engineering. C) immunology. D) microbial genetics. E) gene therapy.
The immunochromatographic assay uses enzyme-linked anti-antibodies
Indicate whether the statement is true or false
Which of the following characters was not an ancestral trait that facilitated the colonization of land by an animal group?
a. Amniotic egg b. Exoskeleton of arthropods c. Lungs d. Vertebrate skeleton e. Arthropod cuticle