One difference between cardiac muscle fibers and skeletal muscle fibers is that cardiac muscle fibers:a
have several nuclei, while skeletal muscle fibers do not.
b. are not striated, while skeletal muscle fibers are.
c. are under voluntary control, while skeletal muscle fibers are not.
d. branch and form complex networks, while skeletal muscle fibers do not.
e. are cylindrical-shaped, while skeletal muscle fibers are spindle-shaped.
d
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Root hairs:a
protect the delicate cells of the apical meristem. b. help orient the root so it will grow downward. c. increase the capacity of roots to absorb water. d. are sparse and extremely long. e. are located at each node on the root
Type I survivorship curves are typical of species that exhibit ________
A) an intermediate number of offspring and an intermediate level of parental care B) few offspring and good parental care C) many offspring and good parental care D) many offspring and poor parental care
Pyoderma in dogs is caused by
A. Staphylococcus aureus B. Staphylococcus intermedius C. Staphylococcus pyogenes D. Staphylococcus epidermidis E. Staphylococcus saprophyticus
Which of the following is true of ribozymes?
A. They are made up of RNA. B. They are made up of protein. C. They are made up of DNA. D. They cannot catalyze reactions.