Which of the following is associated with a prokaryote?
a. Golgi body
b. rough ER
c. nucleoid
d. peroxisomes
c. nucleoid
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The primary structure of a protein
A) is important for determining the secondary and tertiary structure of a protein. B) is simply the order of amino acids from one end of the protein to another. C) is important both genetically and structurally. D) is the linear sequence of amino acids that are linked together by peptide bonds. E) all of the above
In his book Principles of Geology, Lyell argued that:
What will be an ideal response?
Which is the correct horizontal pathway of water from the soil to the center of the root?
a. epidermis ? root hair ? cortex ? pericycle ? endodermis ? xylem b. epidermis ? cortex ? pericycle ? endodermis ? phloem ? xylem c. root hair ? epidermis ? cortex ? endodermis ? pericycle ? xylem d. root hair ? cortex ? endodermis ? pericycle ? epidermis ? xylem e. root hair ? epidermis ? endodermis ? cortex ? xylem ? phloem
In stratified epithelium, such as the epidermis of the skin, cell division occurs
A) in the cells at the base layer only. B) in the surface cell layer only. C) throughout all the layers. D) in the basement membrane only.